12TB Steam Leak Reportedly Exposes Valve’s Older Archives

A reported 12TB Steam leak allegedly exposes files from Valve and third parties from 2003 to 2013, but Valve has not confirmed the archive or its contents.

This includes early versions of Portal 2, Counter-Strike: Global Offensive, and even potential info on Half-Life 2: Episode 3.

12TB Valve Steam Leak Reportedly Came From Public Repository

The leak was spotted by @GabeFollower on X. @Scolcer tweets that this data was hidden in a public repository. He also shared footage of skills that were removed from a beta of Portal 2

There has been no hacking. This is 100% VALVe’s fault.

The Steam Teraleak was obtained from a site that was 100% accessible to the public. It was there for everyone to download. No passwords. Nothing. Hidden in plain sight, but with no protection whatsoever.

This is the reason it only covers from Steam’s birth up to 2013, when they switched to the new storage system.

This 13 Terabyte leak also contains a huge amount of third-party content (files/betas from other games that were on Steam before 2013), which means it’s a VERY DANGEROUS situation for everyone. Be very careful.

It could take some time for all of the data that was leaked to be processed. Valve has not publicly confirmed the leaks’ details, source, or legitimacy. Insider Gaming will continue to monitor the story and report any updates as more information becomes available.

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For more, check out the details of a lawsuit that was filed against Valve earlier this year. Also, don’t forget to sign up for our weekly newsletter.