A hot potato: Valve has just gone through what might be the worst weekend in recent history. The PC gaming giant was hit by a gigantic leak of private gaming data, a multi-terabyte trove containing information about numerous unreleased titles and a large amount of third-party content. Enthusiasts should be especially careful when handling all this "hot" and potentially copyrighted gaming data, experts warn.

From September 2003 to early 2013, Valve employed a "Steam2" server architecture to manage data flowing through its PC gaming store. Now, a substantial portion of that data is being shared through the BitTorrent network after someone uploaded the content over the weekend. The Steam2 content server dump, also known as the "Teraleak" incident, includes 12 terabytes of unreleased products from both Valve and other popular PC developers.

According to Valve enthusiast "Gabe Follower," the Teraleak did not involve hacking or any other type of security incident. The massive leak is entirely Valve's fault, GF said, as the 12TB of data were obtained through publicly accessible endpoints. In fact, exactly how the data archives came to exist is one of the many mysteries being investigated right now.

The Teraleak files could have been harvested by data hoarders and Valve enthusiasts over the years, before the company decided to switch to the new SteamPipe server architecture in 2013. On a Valve-focused Discord server, the alleged uploader of the original archive said that putting all the data together required a significant effort that should not go to waste.

The Teraleak will likely be a turning point in the history of gaming leak incidents. Data analysts and Valve specialists are currently digging through the content, uncovering many interesting data points, previously unknown cut content, and early PC game titles. So far, the Steam2 Content Server appears to include a couple of Portal 2 prototypes, Sonic the Hedgehog 4, and much more.

People expecting to find a few hints of any Half-Life 3 content will be disappointed, though. So far, the Teraleak incident has only revealed a weapon model that Valve previously unveiled in the company's official documentary clips about the canceled Half-Life 2: Episode 3.

Data hoarders are still looking through the Teraleak, as they have often done throughout Valve's recent history of major leaks involving upcoming hardware and software products. However, experts warn that the amount of third-party content included in the leak is truly massive. People might get into trouble even if they're simply trying to salvage a piece of PC gaming history that many thought was lost forever.