Millions of Facebook records found on Amazon cloud servers

Facebook Inc. user data is still showing up in places it shouldn’t.

Researchers at UpGuard, a cybersecurity firm, found troves of user information hiding in plain sight, inadvertently posted publicly on Amazon.com Inc.’s cloud computing servers. The discovery shows that a year after the Cambridge Analytica scandal exposed how unsecure and widely disseminated Facebook users’ information is online, companies that control that information at every step still haven’t done enough to seal up private data.

In one instance, Mexico City-based digital platform Cultura Colectiva, openly stored 540 million records on Facebook users, including identification numbers, comments, reactions and account names.