Hackers could control your computer and delete all your files.

If you own CS:GO or Team Fortress 2, do not play it as your computer will be at risk to malware and potential bricking.

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

This is a huge security issue for Valve. Although these games came out more than 10 years ago, there is an active community that still regularly plays these titles, mainly through Steam.

Do not launch TF2 under any circumstances, Remote Code Execution exploits have already been found which means you can receive a virus from simply joining a server with a cheater. This is not a drill.

— Heavy Update Out Yet (@HeavyUpdateOut) April 22, 2020

Having the source code public is an issue because it gives hackers the ability to search the games' files for exploits and weaknesses to send viruses and malware to any online player. Your computer could be bricked if you choose to play online at all.

me when i find the dude who leaked the source code for TF2 and CSGO pic.twitter.com/HYbuIzqNJx

— Salt (@Illumersaltii) April 22, 2020

Stay safe out there gamers, we are still waiting for Valve's response to this scary security breach.