Security Firm Finds Millions of Facebook Data Files Were Stored on Amazon's Public Cloud Servers

UpGuard's report points to third parties

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A cybersecurity firm says it has found millions of Facebook user files stored on a public Amazon cloud server.

According to UpGuard, more than 540 million records with user information including comments, likes, reactions, names and Facebook IDs were exposed on the public internet through third-party data sets totaling 146 gigabytes. The files, revealed today, were stored on Amazon’s S3 cloud storage and originated from Mexico-based media company Cultura Colectiva and the former Facebook-integrated app “At The Pool.”

According to UpGuard, the files—which also contained data about user interests, relationships and interactions—were stored in a way that allowed them to be publicly downloaded.

“As Facebook faces scrutiny over its data stewardship practices, they have made efforts to reduce third party access,” according to the report.



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