The Israeli hacker who saved Facebook — twice Nir Goldshlager found a serious security breach in the social media network — and then found a hole in the ostensibly repaired code, too

Nir Goldshlager (photo credit: Courtesy)

Nir Goldshlager, a “white hat” hacker who has tested computer security systems for some of the biggest companies in the world, is once again a hero. For the second year running, Goldshlager is the No. 1 name in Facebook’s security “hall of fame,” featured on a page thanking hackers “for making a responsible disclosure to us, on behalf of over a billion users.” Goldshlager also appeared on the list in 2011, in second place.

Goldshlager, a staff member at the Israeli cyber-security firm Avnet, actually saved Facebook twice this year. He uncovered a major security breach (in Facebook’s OAuth authentication protocol for external services) that would allow hackers to take control of accounts, and when Facebook hurried to cover the breach, he discovered a second major problem in the corrected code.

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