540 Million Facebook Users Personal Data Exposed to the Public Internet

Over 540 million Facebook users personal records that include comments, likes, reactions, account names, FB IDs exposed to the public Internet. All the data are collected and stored by Third-Party developers.

Researchers from UpGuard found third-party Facebook app datasets, one from Mexico-based media company Cultura Colectiva and another one belongs to Facebook-integrated app “At the Pool”.

Both of the app datasets found exposed to the public Internet through Amazon S3 bucket, that allows anyone to download the files.

Around 146 gigabytes of data that contains more than 540 million records exposed from the AWS server belongs to Cultura Colectiva, the exposed data contains comments, likes, reactions, account names, FB IDs and more.

The second server contains the backup of the Facebook-integrated app titled “At the Pool” exposed through the public Internet, the exposed database contains contained columns for fk_user_id, fb_user, fb_friends, fb_likes, fb_music, fb_movies, fb_books, fb_photos, fb_events, fb_groups, fb+checkins, fb_interests, password, and more.

Exposed passwords are the passwords used for At the Pool app, if you used the same password again, then you will be at risk. You prefer using password managers to get strong and unique passwords.

According to UpGuard “At the Pool” stores the passwords for 22,000 users in plain text, “the data sets vary in when they were last updated, the data points present, and the number of unique individuals in each.”

“But as these exposures show, the data genie cannot be put back in the bottle. Data about Facebook users has been spread far beyond the bounds of what Facebook can control today”, reads UpGuard blog post.

Upguard notified Cultura Colectiva and At the Pool, about the unsecured servers, but there is no response back from their end. Now the Facebook app dataset has been secured and taken offline after Upguard, Facebook and Bloomberg contacted Amazon.

You can follow us on LinkedinTwitterFacebook for daily Cybersecurity updates also you can take the Best Cybersecurity courses online to keep your self-updated.

Gurubaran

Gurubaran is a co-founder of Cyber Security News and GBHackers On Security. He has 10+ years of experience as a Security Consultant, Editor, and Analyst in cybersecurity, technology, and communications.

Recent Posts

Authorities Arrested Hacker Behind 90 Major Data Breaches Worldwide

Cybersecurity firm Group-IB, alongside the Royal Thai Police and Singapore Police Force, announced the arrest…

1 hour ago

Cisco Nexus Vulnerability Allows Attackers to Inject Malicious Commands

Cisco Systems has issued a critical security advisory for a newly disclosed command injection vulnerability…

4 hours ago

New Wi-Fi Jamming Attack Can Disable Specific Devices

A newly discovered Wi-Fi jamming technique enables attackers to selectively disconnect individual devices from networks…

4 hours ago

GitLab Vulnerabilities Allow Attackers to Bypass Security and Run Arbitrary Scripts

GitLab has urgently released security updates to address multiple high-severity vulnerabilities in its platform that…

6 hours ago

LibreOffice Flaws Allow Attackers to Run Malicious Files on Windows

A high-severity security vulnerability (CVE-2025-0514) in LibreOffice, the widely used open-source office suite, has been…

6 hours ago

Cisco Nexus Switch Vulnerability Allows Attackers to Cause DoS

Cisco Systems has disclosed a high-severity vulnerability (CVE-2025-20111) in its Nexus 3000 and 9000 Series…

7 hours ago