Facebook: Bug jeopardized email addresses, phone numbers of 6M users

A recent bug on Facebook exposed the phone numbers and email addresses of roughly 6 million users, the site reported late Friday on its blog. Facebook claims that they have no evidence that the bug was exploited maliciously, and has since been fixed. Affected users have been notified via email, and Facebook has notified regulators in the U.S., Canada and Europe.

Someone tipped off Facebook’s White Hat Program to the problem, and Facebook worked quickly to fix it.

Facebook described what happened:

Describing what caused the bug can get pretty technical, but we want to explain how it happened.