Researchers found Facebook had some security vulnerabilities that exposed hundreds of millions of records.
Cybersecurity firm Upguard said more than 540 million records, including comments, likes, reactions and account names were exposed to the public until recently. It’s unclear how many users are impacted.
Upguard says the issue appears to be because of a feature that allows third parties to integrate apps and websites with Facebook. When this happens, Facebook can’t guarantee the safety of user data.