1 factor of 2 factor auth is completely useless without any identity to tie it to

we’re talking about the facebook data leak that associates a number to an identity.

We’re talking about a website that allows you to enter a number to see if it’s in a leak.

People are saying you shouldn’t put a number in there because if it’s not already in there, you are leaking some kind of privileged information.

That’s not true.

If that's the case then please go ahead and post a comment containing your full phone number

If I posted it as a comment, it would be tied to my identity.

It's super easy to find your identity from just your IP. I can't remember the service that does it... maybe drift.com?

So putting your phone into a website also ties it to your identity.

Knowing the phone number doesn't mean you can get the texts that are sent to it.

Don't be so sure https://news.ycombinator.com/item?id=26468892

The commenter is leery of entering their phone number into the article link.