Valve just informed people on twitter that the Source Engine code has been leaked and there is a risk that if you are playing a game that uses Source a Hacker could Seriously damage your PC if you play one of the games that the source engine is used for E.G. Gary’s Mod, TF2, Counter Strike 2.
I would recommend staying off those games for now until a patch comes out. **IF ** You decide to play those games then you are taking a risk,
** Sources **
Source code for both CS:GO and TF2 dated 2017/2018 that was made available to Source engine licencees was leaked to the public today. pic.twitter.com/qWEQGbq9Y6
— Steam Database (@SteamDB) April 22, 2020
Stay Safe Everyone