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New post up at Web Insecurity: Will Facebook's choice of social authentication (face CAPTCHAs) lead to huge gains in facial recognition software?

Excerpts:
For many people with public profiles, flickr accounts, etc. it's pretty easy for a hacker to identify your friends. (Even easier if your would-be hacker is a jilted lover or angry sibling, but presumably those folk could also pass a regular CAPTCHA.) The key here isn't that this social authentication isn't hackable, though, it's that the hack has to be more carefully crafted to your account, and may well require a human to do the facial recognition necessary, thus slowing down the attack and doing exactly what CAPTCHAs were intended to do.
...
So the interesting question to me is "Will Facebook's choice of Face CAPTCHAs lead to huge gains in facial recognition software?" -- we're well overdue for gains in that area, actually, given that law enforcement is hoping to use facial recognition to stop crime and even terrorism, but the technology is so poor right now that if they used it now they'd likely be arresting a lot of innocent folk.


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