Could Valve, the company that owns Steam, have been hacked again? In a post on modding site Interlopers, it seems that's the case we're in now.

To put things in context, here's a brief history on Valve's security breaches. In 2003, a German hacker by the name of Axel "Ago" Gembe, who's also a longtime fan and kept tabs on the development of Half-Life 2 managed to steal the game's source code. It was then leaked onto the internet where it was available for anyone to modify, compile and play with. Gembe was eventually identified and caught by the FBI with the help of the online community.

Four years later, Valve was once again negotiating with another hacker. Someone who goes by the name "MaddoxX" on the anti-Steam website revealed that he had managed to bypass Valve's security protocols and accessed a significant amount of data which includes:

– Screenshots of internal Valve web pages

– A portion of Valve's Cafe directory

– Error logs

– Credit card information of customers

– Financial information on Valve

Once again, with the help of the Valve community, MaddoxX, who was revealed as a 20-year old Dutch IT student, was arrested.

Now, five years later, it seems in the time MaddoxX hacked Valve, it wasn't just credit card info and financial info that was stolen.

In a Russian underground forum (as recent as August 31, 2012), they were discussing and linking for the Source engine (rev: 2007). The poster (Skoften on Interlopers), managed to get his hands on a sample and confirms that this is the actual source code with a "Last Modified Date" of January 2008 (which can be altered easily).

The screengrab below shows client builds for the 2007 engine: