Facebook hack: Why you must avoid logging into sites using a single account

If you found yourself logged out of your Facebook account last week, it's likely you were affected by the hack

Facebook announced on Friday that its engineering team had discovered a security issue affecting almost 50 million accounts. Due to a flaw in Facebook’s code, hackers were able to take over an account and use it in the same way you would if you had logged into the account with a password.

The company says it has now fixed the problem in its code and reset access tokens for those accounts – along with 40 million other accounts that were vulnerable to the flaw. If you found yourself logged out of your Facebook account last week, it’s likely you were affected.

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