News for hackers. Stuff that matters.
Re:Facebook won’t let you opt out of its phone number ‘look ... by potatofarmer45 on Monday March 04, 2019 @12:01AM (#19298911)
This will make keeping your social media private during recruiting much much harder because rather than trying to search for your name on FB or your email, an interviewer can just search your listed contact number. Names are often not unique but phone numbers are.

This matters because creating a new email account for recruiting is trivial, yet creating a new phone number for recruiting is not. Most phones are not dual sim, and you want to have a phone on you in case the recruiter or future employer calls. Hence the account id rate using a phone number should be much higher and makes it dramatically easier to find somebody.

The nasty part is even if you rename your account to your "first-name middle-name" or an alias, you could be found out via phone number search. So simply renaming your account no longer ensures random recruiters can't just find your profile. Your FB name could be "giant blue monkey" which prevents a regular name search but would still be identifiable via phone number search.

Re:Facebook won’t let you opt out of its phone number ‘look ... by on_and_off on Monday March 04, 2019 @12:39AM (#19299056)
There are also a non negligible number of people using an alias on facebook because they have good reason.

Apparently when a woman uses a pseudonym on facebook, it is not unlikely that it is because of a nasty/stalkerish ex that she would rather get away from.

I am actually in favor of a transparent society (a la david brin) , but we have to grown up a lot and handle such cases before the advantages that come with it can even be contemplated.

Re:Facebook won’t let you opt out of its phone number ‘look ... by arcturus17 on Monday March 04, 2019 @01:26AM (#19299222)
> in favor of a transparent society

I suggest you read The Transparent Society by Byung-Chul Han. It’s a brutal 50-page indictment of the hypercult of transparency and its effects on the human soul, on the political discourse, and on traditional values like truth and beauty. Might change your view on the costs of transparency.

Re:Facebook won’t let you opt out of its phone number ‘look ... by no_identd on Monday March 04, 2019 @02:51AM (#19299537)
The Hypercult of Transparency[nice choice of words!] exists because people keep falling for the Transparency=Accountability meme. And until the rather recent advent of homeomorphic encryption, that meme did have some rather humongous amounts of truth to it. However, given the existence of homeomorphic encryption, this no longer rings true.

Speaking of homeomorphic encryption and Facebook:

https://news.ycombinator.com/item?id=19288633

Re:Facebook won’t let you opt out of its phone number ‘look ... by bogomipz on Monday March 04, 2019 @10:27AM (#19301951)
Whats the connection between discussions about "the cult of transparency" and homeomorphic encryption?
Re:Facebook won’t let you opt out of its phone number ‘look ... by Natanael_L on Monday March 04, 2019 @11:16AM (#19302327)
Presumably that accountability could be achieved despite secrecy, through code. Also see Zero-knowledge proofs
Re:Facebook won’t let you opt out of its phone number ‘look ... by no_identd on Wednesday March 06, 2019 @02:26AM (#19316977)
Yepp.
Re:Facebook won’t let you opt out of its phone number ‘look ... by Faaak on Monday March 04, 2019 @07:42AM (#19300779)
The three body problem book part 2 also explores a fully transparent society; It's really interesting with all the sides effects (They can't lie, etc.). I recommend anyone to read it !
Re:Facebook won’t let you opt out of its phone number ‘look ... by GiuseppaAcciaio on Monday March 04, 2019 @08:08AM (#19300913)
I read the first and while the ideas explored were interesting, I found the writing itself to be completely off-putting:

- first of all, Three Body seems like the most boring videogame ever developed, not sure how people could actually be believably playing that.

- the characters are pretty much caricatures of stereotypes (the cop), or just plain uninteresting.

- the massive exposure/infodump chapters killed the immersion from me, especially the ones written from the point of view of the other side of the conflict: it really felt like the author was getting towards the end and wanted to Explain All The Things, but couldn't find a subtle way to do so within the narrative, therefore decided to just vomit it all in a single spurt.

I was really looking forward to it but found it disappointing, won't read any more from this author.

Re:Facebook won’t let you opt out of its phone number ‘look ... by psychometry on Monday March 04, 2019 @10:53AM (#19302143)
Agreed, it's some of the worst prose I've ever read. Since I don't read Mandarin, I can't know how much of it can be blamed on the author and how much on the translator. There are some really interesting ideas in the novel but also some patently absurd ones, not to mention the terrible dialogue and characters.
Re:Facebook won’t let you opt out of its phone number ‘look ... by lambda_lover on Monday March 04, 2019 @11:19AM (#19302357)
I felt the same. I wonder if some of these issues stem from the fact that the book was originally written in Chinese (iirc)... maybe some of the infodump sections seem more natural in the original tongue?
Re:Facebook won’t let you opt out of its phone number ‘look ... by mvkel on Tuesday March 05, 2019 @12:59PM (#19312528)
Isn't the premise of that book that privacy is a deep human need, and that its erosion goes against our intent?

I would argue that the next generation coming up will have little to no _need_ for privacy. When you grow up with nanny cams in your bedroom, privacy per se isn't even valued, let alone met with an expectation.

Re:Facebook won’t let you opt out of its phone number ‘look ... by arcturus17 on Tuesday March 05, 2019 @03:48PM (#19314086)
Nanny cams won’t change the fundamental nature of human beings. If privacy was a deep human need a generation ago, it will continue to be for foreseeable generations. Technology has created an illusion of progress and transcendance of our own nature but in truth we’re still merely advanced primates.
Re:Facebook won’t let you opt out of its phone number ‘look ... by stareatgoats on Monday March 04, 2019 @06:57AM (#19300575)
There is a thoughtful counterargument to Han here:

https://mesocosm.net/2013/10/01/digital-humanism/

IMO it doesn't sufficiently deal with the problems of the "full transparancy" ideal that Han points out though.

Re:Facebook won’t let you opt out of its phone number ‘look ... by gdfasfklshg4 on Monday March 04, 2019 @03:59AM (#19299802)
> Apparently when a woman uses a pseudonym on facebook, it is not unlikely that it is because of a nasty/stalkerish ex that she would rather get away from.

Also men do this...

Re:Facebook won’t let you opt out of its phone number ‘look ... by renholder on Monday March 04, 2019 @05:29AM (#19300192)
>Also men do this...

True story. A stalker found my blog via my Instagram account and commented some far-out there shit on it, inferring a conversation that we never even had, "Told you that you weren't dead." WTF!?

Now, it's pseudonyms, pseudonyms everywhere; except, of course, where it serves a necessity to have your actual name being used, such as on LinkedIn, but even those will be discarded, as soon as it's no longer necessary. (Necessity, here, meaning seeking gainful employment.)

Re:Facebook won’t let you opt out of its phone number ‘look ... by Already__Taken on Monday March 04, 2019 @03:34AM (#19299699)
see also: Any employee in the education sector would have good reason.
Re:Facebook won’t let you opt out of its phone number ‘look ... by usrusr on Monday March 04, 2019 @03:43AM (#19299732)
I wonder how long it takes until the whole teaching profession just collectively decides to adopt professional pseudonyms. Would make "child at same school"-situations even more awkward I guess.
Re:Facebook won’t let you opt out of its phone number ‘look ... by mrguyorama on Monday March 04, 2019 @11:11AM (#19302285)
My mother was my french teacher at school three times. At home she was "mom" and in class she was "madame". It was not complicated.

That being said I did once call my male first grade teacher "mom" so maybe I'm not a good example

Re:Facebook won’t let you opt out of its phone number ‘look ... by gdfasfklshg4 on Monday March 04, 2019 @04:18AM (#19299873)
The issue would be safeguarding.
Re:Facebook won’t let you opt out of its phone number ‘look ... by Already__Taken on Tuesday March 05, 2019 @03:52AM (#19309164)
There's no problem what name the school has you on the books for. There's no reason what they have on file/police checks is the same name presented on office doors, emails and to parents.

We do this all the time for students that can't/won't use their legal names in school for a number of reasons.

Re:Facebook won’t let you opt out of its phone number ‘look ... by gdfasfklshg4 on Wednesday March 06, 2019 @03:42AM (#19317318)
I guess it is just a matter of getting the right systems in place to manage the administrative overhead.

There are quite a few lines of work where this might not be a bad idea. E.g. also Police and government employees in general.

Re:Facebook won’t let you opt out of its phone number ‘look ... by zdragnar on Monday March 04, 2019 @02:18AM (#19299410)
While I appreciate the premise and good intent, the transparent society sounds like an idealized Girardian nightmare to me.
Re:Facebook won’t let you opt out of its phone number ‘look ... by bfred_it on Monday March 04, 2019 @01:03AM (#19299140)
We had a million years to grow up, I don't think we'll ever get there (without drastic measures a la 1984, if you wish)
Re:Facebook won’t let you opt out of its phone number ‘look ... by derefr on Monday March 04, 2019 @02:07AM (#19299367)
We haven’t started doing any serious genetic engineering (or maybe, depending on timeline, the equivalent for minds uploaded into computers) yet. Once we do, we could do a lot of “growing up” very quickly.
Re:Facebook won’t let you opt out of its phone number ‘look ... by touristtam on Monday March 04, 2019 @04:29AM (#19299931)
It isn't physical "growing up" that we, as a species, need to do. This is the way the whole society act. If you look at politics and corporate world, it feels like a bunch of pre schooler throwing tantrum. As a society we are not acting responsibly. You could argue that the worse are countries that still argue to go to war with their neighbors on the pretends the later are different, but the rest allowing to destroy the planet while keeping the rest of the society under control, preventing us, as a species, to achieve goals that are dreamed by the most creative of us. And it is depressingly easy to keep the status quo.

The "Growing up" reminded me of this song: https://www.youtube.com/watch?v=5ja-mHeYAKM

Re:Facebook won’t let you opt out of its phone number ‘look ... by derefr on Monday March 04, 2019 @01:28PM (#19303794)
The point I wanted to make here is mostly this: https://slatestarcodex.com/2014/09/10/society-is-fixed-biolo...

IMHO, it doesn’t make sense to blame “society” for being pre schoolers, any more than it makes sense to blame individual humans for becoming mentally ill. Both are just failure modes of our mental hardware (our tribal-status instincts in the societal case.) The only solution to either that would “stick”—what I would interpret “growing up” to mean—is to remake ourselves without those failure modes.

Anything less might help individual humans who get some sort of maintenance treatment for their failure modes; but our society as a whole will still be a function of interactions between both people who have treated those failure modes in themselves, and those who have not yet (because e.g. they aren’t aware yet that they have a problem; or don’t see it as a problem; etc.)

Re:Facebook won’t let you opt out of its phone number ‘look ... by touristtam on Monday March 04, 2019 @03:57PM (#19305374)
Thank you for the link. I agree with what the author is saying, mostly. :)

Mind that when I mentioned society as a whole, this is inclusive to its individual parts: There is no society without individuals and as such any judgment on a society is a judgement on its parts. That being said, I know it is a naive view, as no one can condemn a society completely.

As for the bio engineering to try and weed out the "bad wiring", I am not even sure we are close to identify them clearly, as seems to indicate the science articles about the brain and other nervous system in recent years.

Re:Facebook won’t let you opt out of its phone number ‘look ... by gumby on Monday March 04, 2019 @01:35AM (#19299244)
My GF uses a google voice number (and separate gmail accounts) for job search purposes both for this reason and because she can nuke the phone number later, cutting off headhunters once she'd found something she likes.
Re:Facebook won’t let you opt out of its phone number ‘look ... by Tor3 on Monday March 04, 2019 @03:21AM (#19299639)
Sounds useful. It's unfortunate that google voice still isn't available outside North America. I don't know if that is for technical reasons or for (European/Asian) political reasons. But it sure would have been nice to keep separate numbers the same way it's sometimes necessary to keep separate google accounts.
Re:Facebook won’t let you opt out of its phone number ‘look ... by HenryBemis on Monday March 04, 2019 @05:20AM (#19300150)
Not advertising.. but Skype can also generate phone numbers for you, and you can equally drop them. I remember I used a Skype landline number for that specifi purpose - throaway number for when I was looking for a new job. And I discareded it immediately after.
Re:Facebook won’t let you opt out of its phone number ‘look ... by renholder on Monday March 04, 2019 @05:36AM (#19300225)
>But it sure would have been nice to keep separate numbers the same way it's sometimes necessary to keep separate google accounts.

In Sweden, you can request a pre-paid SIM be sent to you in the mail[0].

To be fair, it's not entirely a "burner" SIM, as it's associated with your personnummer but it's a lot more convenient than queuing in a shop (if that's not your thing).

Maybe your country has a carrier that does the equivalent? :)

[0] - https://webbutik.comviq.se/kontantkort/checkout/comviqcart/p...

Re:Facebook won’t let you opt out of its phone number ‘look ... by 18pfsmt on Friday March 08, 2019 @02:47PM (#19341497)
In the US, I can walk into a store and pay cash for a $30 flip phone without any ID, and unlimited talk and text. 15 years ago it was $150 and 200 minutes talk, 20 texts.
Re:Facebook won’t let you opt out of its phone number ‘look ... by MaxBarraclough on Monday March 04, 2019 @04:33PM (#19305781)
There are plenty of other providers. Here in the UK there's LocalPhone.com for instance. They're even able to get you a number in a country of your choice, forwarding to a phone in a country of your choice.
Re:Facebook won’t let you opt out of its phone number ‘look ... by sridca on Monday March 04, 2019 @12:29PM (#19303068)
Google Voice is US-only.

"Google Voice is only available in the United States. To use Google Voice, sign up with a US-based phone number."

Re:Facebook won’t let you opt out of its phone number ‘look ... by smnrchrds on Monday March 04, 2019 @09:21AM (#19301407)
It's only available in US, not even Canada.
Re:Facebook won’t let you opt out of its phone number ‘look ... by StudentStuff on Monday March 04, 2019 @12:05AM (#19298925)
I think VOIP has great untapped potential for this, having helped many people get vanity numbers with their name embedded. Once the job hunt is over, you can literally reject all calls, and build a caller ID blacklist of spammy companies and recruiters. Plus, numbers are 1/4th to 1/10th the cost of domains these days.
Re:Facebook won’t let you opt out of its phone number ‘look ... by TheSpiceIsLife on Monday March 04, 2019 @12:39AM (#19299053)
It works the other way too.

I keep blocking spammy numbers, and they keep creating new ones.

Re:Facebook won’t let you opt out of its phone number ‘look ... by sokoloff on Monday March 04, 2019 @06:16AM (#19300405)
Are they? I pay $1/mo for phone numbers, which is quite close to what I pay for most of my domains.
Re:Facebook won’t let you opt out of its phone number ‘look ... by _rs on Monday March 04, 2019 @10:12AM (#19301832)
Could you share some places you use to buy numbers like that? Do you just set them up to forward, or do you have more control than that? I've always been interested in this, but apart from Google Voice, I haven't found a good way to get started.
Re:Facebook won’t let you opt out of its phone number ‘look ... by sokoloff on Monday March 04, 2019 @10:31AM (#19301978)
Twilio is the easiest by far, IMO.
Re:Facebook won’t let you opt out of its phone number ‘look ... by StudentStuff on Monday March 04, 2019 @02:57PM (#19304717)
Twilio is also one of the most expensive providers, and if you don't need E911 you can easily get numbers for less than half that price.
Re:Facebook won’t let you opt out of its phone number ‘look ... by _rs on Tuesday March 12, 2019 @01:35PM (#19370775)
That's great to know, could you point me towards any other companies?
Re:Facebook won’t let you opt out of its phone number ‘look ... by disiplus on Monday March 04, 2019 @07:18AM (#19300659)
phone numbers cost close to nothing to operators, but running a voip infrastructure hast its costs, and a lot of those costs come from protecting it from hacking attempts. They love open pbx boxes where they can generate a significant cost, or use to spam others.

also compassion with domain is not exactly fair in this case, it would make more sense to compare it to ip address.

Re:Facebook won’t let you opt out of its phone number ‘look ... by StudentStuff on Monday March 04, 2019 @03:02PM (#19304770)
Fail2ban, not using IP based auth, and mandatory TLS/SRTP will generally cover your bases (ofc, Fail2ban should be banning any IPs attempting TCP/UDP registration or calling without SRTP).

Not really rocket science, but the VOIP industry is stuck in the 1990s when it comes to security practices related to their core offering. Its a terrible state of affairs!

Re:Facebook won’t let you opt out of its phone number ‘look ... by willio58 on Monday March 04, 2019 @12:06AM (#19298926)
So get off public social networks. Problem solved.
Re:Facebook won’t let you opt out of its phone number ‘look ... by gotocake on Monday March 04, 2019 @01:30AM (#19299233)
I realize that you’re getting slammed for a pat, trite, or unhelpful answer to a complex problem, but it also happens to be the only answer. It’s an answer with real consequences, but when weighed against giving your privacy over to FB what else is to be done right now?

Public social networks are poison, they’re inimical to privacy, and we need to get off of any that harvest personal information. Telling people to “quit FB (and other similar services)” may come off wrong, but for a long time so did “quit smoking.” I get it, I’d love to have cigarettes that are healthy and delicious, but until then... quit smoking. Maybe someday public social media will be safe and sane, but until then... quit.

Re:Facebook won’t let you opt out of its phone number ‘look ... by shadowprofile76 on Monday March 04, 2019 @02:09AM (#19299375)
One major difficulty with leaving Facebook in particular over privacy concerns is that it doesn't really stop the social network from violating your privacy, or letting others do it (often without bad intentions on their part). Aside from its now famous shadow profiles, you've got your friends and family or work/business associates posting things with you in them, photos, videos etc and even naming you (don't think they can tag you though if your profile is shut down). And if you've erased your profile you can't even have the minimal safety of monitoring what gets posted by who, so you can ask them to maybe take it down if it's harmful. We get sucked into FB's network effect in all sorts of ways nowadays if we live any kind of normal social life in a connected society.
Re:Facebook won’t let you opt out of its phone number ‘look ... by bogomipz on Monday March 04, 2019 @10:32AM (#19301985)
Agreed although I was curious about one of your points, specifically can FB users tag a person who is not on FB? If so this is really troubling. Also do you know if FB uses shadow profiles to suggest tag name in pictures the same as it does for regular users?
Re:Facebook won’t let you opt out of its phone number ‘look ... by shadowprofile76 on Monday March 04, 2019 @06:20PM (#19306664)
I don't think tagging works for people not on FB, though if anyone else here has seen different, i'd love to hear their two cents. As for tagging of people who were on FB but deactivated their profiles. I've seen tags work before and that;s bad enough because even if you try to leave the social network, people can post images or videos of you and associate your name with them regardless. What shadow profiles have to do with these things I don't honestly know, the social network would keep something like that pretty secret I think.
Re:Facebook won’t let you opt out of its phone number ‘look ... by cm2187 on Monday March 04, 2019 @05:29AM (#19300199)
I don't know anyone around me who still uses facebook. Heard the story of a relative who organised a birthday on facebook and wondered why no one showed up.

I don't think it's an unhelpful answer to a complex problem. I think it's the right answer.

Re:Facebook won’t let you opt out of its phone number ‘look ... by wwweston on Monday March 04, 2019 @03:36AM (#19299706)
> but it also happens to be the only answer.

"Only" oversells the option. There's also:

* mix fake/mining-hostile data in with real data as needed for social media profiles * use public institutions to enact consumer protection policies

Both of these have their own difficulties and limits, of course, but so does ditching social media entirely.

Re:Facebook won’t let you opt out of its phone number ‘look ... by Mirioron on Monday March 04, 2019 @04:16AM (#19299864)
I don't understand why people signed up for Facebook in the first place. The Zuckerberg email and dumbasses quote has been around for a long time.
Re:Facebook won’t let you opt out of its phone number ‘look ... by noxToken on Monday March 04, 2019 @12:40AM (#19299062)
This is such an unhelpful answer that it almost always worthless. The utility of social networks for contact is unmatched. One profile, ideally locked down how you see fit, that follows you for as long as you allow it to follow you. The response to this is usually that there nothing wrong with phone numbers or email addresses. Except there are.

Phone numbers change. This is less frequent now that we have mobile numbers, but they still change. Email addresses can also change as people move through different phases of life. Hell, email seems to be becoming unreliable as calling since unsubscribing from mailing lists you never joined doesn't seem to work any more.

I get it. Facebook is evil.

Re:Facebook won’t let you opt out of its phone number ‘look ... by cbzbc on Monday March 04, 2019 @01:04AM (#19299145)
You can set it to be searchable by friends only, which should avoid recruiters being able to do this, unless they are adding themselves as friends first.
Re:Facebook won’t let you opt out of its phone number ‘look ... by fpalmans on Monday March 04, 2019 @01:22AM (#19299203)
If you set it to searchable by friends only, wouldn't you still show up in the suggestions? Especially if your number is added in someone's cell phone?

By the way: I haven't actually used facebook since 2012...

Re:Facebook won’t let you opt out of its phone number ‘look ... by cbzbc on Monday March 04, 2019 @01:25AM (#19299213)
I’m not entirely sure how suggestions work in this context, I would presume that you’d only show up in suggestions to the circle within which you had allowed your number to be searchable, and so ‘friends only’ should prevent being added by phone number.
Re:Facebook won’t let you opt out of its phone number ‘look ... by bwann on Monday March 04, 2019 @02:41AM (#19299495)
I totally get people want a "only me" option here, but really how bad is "friends-only" here? If I'm "friends" with you, you probably already know my phone number in real life.
Re:Facebook won’t let you opt out of its phone number ‘look ... by Vinnl on Monday March 04, 2019 @03:30AM (#19299674)
I'm not really actively using Facebook anymore, but when I did, the threshold for becoming a "Facebook friend" was a lot lower than that for regular friends, or people I shared my phone number with.
Re:Facebook won’t let you opt out of its phone number ‘look ... by Broken_Hippo on Monday March 04, 2019 @04:17AM (#19299872)
Because a "facebook friend" isn't an actual friend, and having these "friends" have my phone number is like everyone in a bar being able to look up my number. Or perhaps like going to a work conference and everyone being able to call me.

The random "How are you are you single wanna talk about sex with me?!!???" messages are bad enough. I certainly don't want those as phone calls.

Those on the list that are actual Friends might have my phone number. Might not, though, since there is no point (I moved countries). In any case, they know not to freaking call me unless it is important or you have reason or you want me to answer my door.

Re:Facebook won’t let you opt out of its phone number ‘look ... by makomk on Monday March 04, 2019 @06:16AM (#19300403)
Letting your friends have your number is a separate setting you can turn off (at least for now). This is about friends who have your number being able tell that it is your number, I think.
Re:Facebook won’t let you opt out of its phone number ‘look ... by dragonwriter on Monday March 04, 2019 @04:54AM (#19300043)
> Because a "facebook friend" isn't an actual friend

That's only true for you if you choose it to be true for you.

Re:Facebook won’t let you opt out of its phone number ‘look ... by Broken_Hippo on Monday March 04, 2019 @05:40AM (#19300238)
On the surface that is true, but most folks understand it doesn't really work that way and facebook isn't really used that way. At a minimum, facebook is generally full of actual friends (for me, maybe 5 folks now), family (my family is large) and folks you generally have met from school and work and other folks you might know in a professional manner or through groups and activities.

Not all of these groups would have my phone number, but facebook isn't exactly a telephone service at its core.

Re:Facebook won’t let you opt out of its phone number ‘look ... by GrinningFool on Monday March 04, 2019 @10:03AM (#19301774)
Can't you limit your FB friends to actual friends?
Re:Facebook won’t let you opt out of its phone number ‘look ... by Broken_Hippo on Monday March 04, 2019 @11:38AM (#19302528)
Sure, at a cost. Actual friends and immediate family? I'm covered in 20 people or less. Most wouldn't call, though, since I moved across an ocean.

I could include folks I've been to school with, folks I met in language class, a few folks I've worked with, and so on. I don't want all of these folks to call me, though, and I*d rather some didn't have my number. I also don't fully dislike these folks.

More seriously, though, it would keep my social circle smaller. I met my spouse online around 10 years ago, and this sort of caution you ask about would mean I wouldn't have my life.

Re:Facebook won’t let you opt out of its phone number ‘look ... by dspillett on Monday March 04, 2019 @04:56AM (#19300051)
Becaused for most people "friends" on facebook range from tru life-long friends down to mearly contacts, people you need to interact with in some way butdon't neccessarily want bothering you by phone.
Re:Facebook won’t let you opt out of its phone number ‘look ... by sangnoir on Monday March 04, 2019 @12:52PM (#19303378)
> Names are often not unique but phone numbers are.

Right out of "Myths programmers believe about phone numbers" which was on the HN front page a week back. Has everyone forgotten about landlines? Even cell numbers are not permanently assigned to a single person: especially in jurisdictions where pay-as-you-go accounts are the majority.

Re:Facebook won’t let you opt out of its phone number ‘look ... by C1sc0cat on Monday March 04, 2019 @06:45AM (#19300523)
You use your real phone number on FB? MY no on there is a fake (but real number in my area code).

And I don't put my Mobile number on FB at all.

Re:Facebook won’t let you opt out of its phone number ‘look ... by rocqua on Monday March 04, 2019 @08:46AM (#19301142)
Might it be possible to compromise your account by getting control of that phone number?
Re:Facebook won’t let you opt out of its phone number ‘look ... by C1sc0cat on Monday March 04, 2019 @12:15PM (#19302893)
Lol the 66666 number isn't normally handed out in the uk I used xxxx 66666.
Re:Facebook won’t let you opt out of its phone number ‘look ... by jzl on Monday March 04, 2019 @02:36AM (#19299471)
If you apply to work at Facebook do they look at non-public content in your Facebook account? Let's assume you're not even keeping your Facebook profile a secret.
Re:Facebook won’t let you opt out of its phone number ‘look ... by nuclear_eclipse on Monday March 04, 2019 @03:05AM (#19299582)
No. This would be a violation of our data privacy policies and would result in immediate termination of all employees involved.
Re:Facebook won’t let you opt out of its phone number ‘look ... by Teever on Monday March 04, 2019 @04:05AM (#19299823)
Given the complete lack of respect that Facebook has for individual privacy and the wellbeing of our society in general why should anyone believe this?
Re:Facebook won’t let you opt out of its phone number ‘look ... by icebraining on Monday March 04, 2019 @04:47AM (#19300017)
If you think that of FB, why would you be applying to work there?
Re:Facebook won’t let you opt out of its phone number ‘look ... by Faaak on Monday March 04, 2019 @07:44AM (#19300787)
Not that I support the idea, but big bucks ?
Re:Facebook won’t let you opt out of its phone number ‘look ... by anticensor on Monday March 04, 2019 @10:32AM (#19301982)
It would violate terms of service you agreed to.
Re:Facebook won’t let you opt out of its phone number ‘look ... by jellicle on Monday March 04, 2019 @11:47AM (#19302612)
Um, please explain how Facebook using data you gave it for Facebook's purposes violates Facebook's terms of service.
Re:Facebook won’t let you opt out of its phone number ‘look ... by jzl on Monday March 04, 2019 @01:47PM (#19304009)
I figured that was the answer for the hiring manager and all regular employees in the hiring chain, and wasn't implying that anyone might go digging in violation of the rules. (At least not since the early days where stories like that abound.) Wondering more about the HR department doing it under direct authorization of senior management. I assume that Facebook like most companies runs background checks on prospective employees. They must at least be tempted to include their own vast database as part of that background check. I could imagine an automated "security check" process that could be run on a profile without actually seeing that profile, and if it turned up red flags (keywords, high number of reported posts, etc.) HR goes digging further. Maybe not, but certainly wouldn't surprise me.
Re:Facebook won’t let you opt out of its phone number ‘look ... by malka on Monday March 04, 2019 @01:49PM (#19304047)
Sorry, but i cannot see any good reason to trust the word of anyone from Facebook. This company has shown that it is routinely deceptive and lying. Why woud this be an exception ?
Re:Facebook won’t let you opt out of its phone number ‘look ... by mirimir on Monday March 04, 2019 @02:28AM (#19299445)
That's why you never give them your primary number. Have a burner phone. Or lease a SIM in the Philippines.
Re:Facebook won’t let you opt out of its phone number ‘look ... by throwaway9d0291 on Monday March 04, 2019 @04:22AM (#19299897)
> creating a new phone number for recruiting is not

Actually it's really straightforward with Twilio and you can set it to forward to a regular number. Works in most countries/regions.

I used it to give my wife a US number for clients (she's a freelancer).

Re:Facebook won’t let you opt out of its phone number ‘look ... by raverbashing on Monday March 04, 2019 @02:19AM (#19299414)
Phones are not unique but a lot of them are reused when a subscriber changes provider

(They could have always searched you by name, if you're worried about your identity then it makes sense to not connect your phone number to FB)

Re:Facebook won’t let you opt out of its phone number ‘look ... by Tor3 on Monday March 04, 2019 @03:28AM (#19299666)
>but a lot of them are reused when a subscriber changes provider

OT, but I had a not-so-nice experience with that. Some years ago I got myself a data-only phone number/SIM card for my 3G dongle.

It turned out that the number was reused, and the previous owner of that number had subscribed to a pay-for message service for upcoming events (concerts, movies, etc). And they kept arriving to my data-only dongle, and I didn't notice for a while. Had to pay for it, though.

I don't remember how I eventually managed to turn that off (the software for accessing/manipulating that part of the dongle was Windows only).

Re:Facebook won’t let you opt out of its phone number ‘look ... by rsync on Tuesday March 05, 2019 @11:40AM (#19311748)
"This matters because creating a new email account for recruiting is trivial, yet creating a new phone number for recruiting is not."

I create (and destroy) new phone numbers all the time. Via the command line. I can route and forward and block them any way I like, to and from my existing phone (which is single SIM) or to ... nowhere.[1]

https://twilio.com

[1] I have a "ring forever" TwiML bin that I like to use.

Re:Facebook won’t let you opt out of its phone number ‘look ... by paul7986 on Monday March 04, 2019 @02:51AM (#19299539)
Why would you ever use your real number vs. a throwaway google voice number designated for spam?
Re:Facebook won’t let you opt out of its phone number ‘look ... by simonh on Monday March 04, 2019 @02:53AM (#19299546)
Because you don't know about or use Google Voice, or you live in a country it doesn't serve?
Re:Facebook won’t let you opt out of its phone number ‘look ... by piotrkaminski on Monday March 04, 2019 @12:21AM (#19298982)
> yet creating a new phone number for recruiting is not

Doesn't Google Voice solve this problem? Or perhaps there are restrictions I don't know about. Of course, you still have to remember to create a burner phone number before giving out your contact info...

Re:Facebook won’t let you opt out of its phone number ‘look ... by katbyte on Monday March 04, 2019 @01:36AM (#19299250)
At least in canada with the national do not call list, I’ve found I receive very few robo calls. For those I do if I wait to talk to a real person and then press as too who is calling me so I can file a report they hang up quick and I don’t hear back.
Re:Facebook won’t let you opt out of its phone number ‘look ... by ardy42 on Monday March 04, 2019 @12:25AM (#19299002)
> Doesn't Google Voice solve this problem? Or perhaps there are restrictions I don't know about.

Only sort of. I wouldn't be surprised if Facebook rejects Google Voices numbers and will only accept a real-live carrier numbers. It seems pretty easy to do, given how often my GV is rejected by sleezy services I'd like to give a throwaway (e.g. peoplesearch opt-outs).

However, I'm not going to personally test this theory by attempting to give a panopticon like Facebook even my semi-throwaway GV number.

Re:Facebook won’t let you opt out of its phone number ‘look ... by exhaze on Monday March 04, 2019 @12:50AM (#19299088)
Let me surprise you then so you can stop making false speculations - you can use a GV number for Facebook 2FA.
Re:Facebook won’t let you opt out of its phone number ‘look ... by pilif on Monday March 04, 2019 @12:38AM (#19299045)
Even if FB was not allowing Google Voice, you could give FB the real number and give throwaway GB numbers to recruiters.

That would solve the issue voiced by OP

Re:Facebook won’t let you opt out of its phone number ‘look ... by potatofarmer45 on Monday March 04, 2019 @12:57AM (#19299113)
I imagine most people would have no idea their profiles could be searched via phone number. I didn't know until today.

If it never occurred to you that this could happen, you would not take steps to prevent it.

Re:Facebook won’t let you opt out of its phone number ‘look ... by sundvor on Monday March 04, 2019 @01:48AM (#19299296)
We don't have Google Voice in Australia.
Re:Facebook won’t let you opt out of its phone number ‘look ... by dgellow on Monday March 04, 2019 @01:56AM (#19299332)
Only for US and Canada.
Re:Facebook won’t let you opt out of its phone number ‘look ... by mthoms on Monday March 04, 2019 @10:58PM (#19307985)
Only US actually.
Re:Facebook won’t let you opt out of its phone number ‘look ... by runn1ng on Monday March 04, 2019 @12:32AM (#19299016)
Because of all the issues with (1) terrorists, (2) foreign state influencers, (3) spammers, Facebook tries to block Google Voice as much as possible
Re:Facebook won’t let you opt out of its phone number ‘look ... by _Microft on Monday March 04, 2019 @04:20AM (#19299888)
Just two weeks ago: Falsehoods Programmers Believe About Phone Numbers - https://news.ycombinator.com/item?id=11321236
Re:Facebook won’t let you opt out of its phone number ‘look ... by Friedduck on Monday March 04, 2019 @06:59PM (#19306911)
I haven’t heard: if you replace your phone number will they maintain the association with your historical one? It’d be trivial to get a Google Voice number or burner to replace yours.
Re:Facebook won’t let you opt out of its phone number ‘look ... by max_ on Monday March 04, 2019 @04:46AM (#19300014)
At this point I have no pity for people who continuously feel violated by Facebook.

Data hygiene is both the responsibility of users & social media cooperations.

I still wonder why people rely on the kindness of strangers (the people that run the social networks) trying to make money off them. & then start crying foul when they are treated like garbage.

Simply don't; - Submit data you find sensitive. - Use bonus credentials where feasible - Deny app access to your mic, location, contacts, camera & calendar - Delete your account if you have substitutes for the features Facebook offers

Re:Facebook won’t let you opt out of its phone number ‘look ... by michaelt on Monday March 04, 2019 @05:24AM (#19300172)
...and if a single person (or company) with your number in their phone allows Facebook to access their contacts, FB has your phone number anyway.
Re:Facebook won’t let you opt out of its phone number ‘look ... by naveen99 on Monday March 04, 2019 @07:27AM (#19300702)
Second phone numbers aren’t that hard or expensive. you don’t need a second sim, just an app. There is a yc startup providing them: openphone
Re:Facebook won’t let you opt out of its phone number ‘look ... by vowelless on Monday March 04, 2019 @07:36AM (#19300754)
They are rarely usable on web sites for 2fa as they disallow voip numbers. In fact, many websites don’t allow google voice numbers for the same reason.
Re:Facebook won’t let you opt out of its phone number ‘look ... by naveen99 on Monday March 04, 2019 @09:00AM (#19301246)
Is it easy to distinguish voip numbers ?
Re:Facebook won’t let you opt out of its phone number ‘look ... by leesalminen on Monday March 04, 2019 @10:13AM (#19301844)
Yes, using Twilio’s lookup service it’s trivial.
Re:Facebook won’t let you opt out of its phone number ‘look ... by rimliu on Monday March 04, 2019 @08:30AM (#19301039)
I honestly do not get what problem are you trying to solve here. If you have content which you think should be hidden from someone, just do not make it public.