Facebook Inc. said on Tuesday that investigators have determined that hackers did not access other sites that use the social networking site's single sign-on in a massive cyberattack that the company disclosed last week.
"We analyzed third-party access during the time of the attack we have identified. That investigation has found no evidence that the attackers accessed any apps using Facebook Login," said Guy Rosen, a Facebook vice president overseeing security, in a statement sent to Reuters.
The announcement comes after Facebook last week disclosed its worst-ever security breach, saying hackers had stolen login codes that allowed them to access nearly 50 million Facebook accounts.
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