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A comment on Google Apps adds two-factor authentication via SMS.

Re:Google Apps adds two-factor authentication via SMS by ams6110 on Monday September 20, 2010 @07:48AM (#1708448)
I've thought about using this approach, my concern is that SMS is not always "instant". I've had messages take up to 30 minutes to get delivered; it probably does not happen often but it wouldn't take too many occurrences of having to wait for a message on my phone before i'd get irritated.
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Re:Google Apps adds two-factor authentication via SMS by mseebach on Monday September 20, 2010 @09:21AM (#1708662)
> or generated on an application you can install on your Android, BlackBerry or iPhone device

It seems it's a bit like a RSA fob as an app.. Very cool, and a concept that could be expanded. Basically, you could sell whitelabel apps and the backend service to websites that wants two-factor.

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Re:Google Apps adds two-factor authentication via SMS by eli on Monday September 20, 2010 @09:25AM (#1708676)
In fact, RSA already makes that product: http://www.rsa.com/node.aspx?id=1313
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Re:Google Apps adds two-factor authentication via SMS by sweis on Monday September 20, 2010 @10:33AM (#1708935)
Now an equivalent one-time passcode mobile app is available as a free open source app: http://code.google.com/p/google-authenticator/

(Disclaimer: This was my project at Google.)

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Re:Google Apps adds two-factor authentication via SMS by nodata on Monday September 20, 2010 @08:03AM (#1708475)
From my limited experience, I think you can pay to have these types of SMS prioritised.
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Re:Google Apps adds two-factor authentication via SMS by v21 on Monday September 20, 2010 @12:33PM (#1709404)
I work at an SMS aggregator, and I've never heard of such a thing. SMS are pretty speedy, unless something goes wrong and they get wedged, in which case priority messages wouldn't help you anyway.
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Re:Google Apps adds two-factor authentication via SMS by nodata on Monday September 20, 2010 @03:19PM (#1710144)
My limited experience is unfortunately based on online banking: my bank can send me a tan sms faster than anything I've seen.
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Re:Google Apps adds two-factor authentication via SMS by omh on Monday September 20, 2010 @08:43AM (#1708563)
That's interesting. Which country/networks, and is it the sender or the recipient who can prioritise?
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Re:Google Apps adds two-factor authentication via SMS by tomjen3 on Monday September 20, 2010 @09:01AM (#1708610)
I can do that with the api for clickatell.com.
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Re:Google Apps adds two-factor authentication via SMS by awans on Monday September 20, 2010 @10:19AM (#1708888)
At least for wealthier companies, the iPhone/BB/Android apps solves that problem.
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