It’s been over a week since Facebook announced that, thanks to a coding vulnerability, access tokens for at least 50 million* accounts were stolen. Access tokens are important. As Facebook explained in its blog detailing the hack, they are “the equivalent of digital keys that keep people logged in to Facebook so they don’t need to re-enter their password every time they use the app.”

The hack also impacted Facebook’s Single Sign-On, which lets people use one account to log into other sites, meaning the impact of the breach is perhaps wider than even Facebook initially reported. Still, at the moment, there’s no way to know how big of a problem it is, or will be. Nor do we know who did it. We’re in the dark for one simple reason: Facebook has said next to nothing about what it knows — or if it knows much at all.  Ad-driven platforms tend to succeed thanks to one thing: our vulnerability.

Medium.com  click the link to read the rest of the story.

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