Interacting with CS:GO
Today we’re shipping an optional beta branch of CS:GO with changes that are part of our continuing fight against cheating. To help out, you can opt in to the beta by following the instructions here.
CS:GO now significantly restricts the types of programs and files that can interact with the game.
In the unlikely event that you launch the game with incompatible files, you will receive a warning indicating the incompatible file and may be blocked from joining VAC-enabled servers. To resolve the issue, you can disable the ‘Trusted Launch’ in your game settings, however this may temporarily impact your trust score ...Read the full article on CSGO blog