Only an idiot runs games from any source without being sandboxed. People hack accounts on itch and add malicious code to existing files. Programmers intentionally and accidentally add malicious code. If you don't protect yourself your computer will be compromised, data will be breached (stolen or held for ransom) and your system will become a zombie or destroyed. Itch isn't going to protect you, it is you that has to protect you and antivirus and antimalware programs will not protect you against the newest threats or necessarily catch or stop malicious code from executing. You must run games in a closed environment or sandboxed if you care about your computer. If you don't care what happens because you will just reinstall Windows when finishing a gaming session, that will work also.
I will try to be polite,
First thing, don't call players of my game idiots, because they are not, they are awesome people with love for indie/retro styled games and I'm here to make them.
Second, I don't think that I ever heard of developer accidentaly adding a malicious code in the game, I write my scripts and make my models so that accidental/import option is out of the frame and only way any malicious script or file can be put in game is that I knowingly put it here, which I DID NOT DO, NEVER DID and NEVER WILL.
Thanks for leaving a comment, and sorry that you experienced issues with windows' security system flagging Itch' files, it's not the first time it happened and sadly not the last one, but there is no need to call hundreds, soon to be thousands of players who played my game idiots who don't know basics of how pc's work, take care and best to you!
It seems you care more about your fanbase than their computers... but without their computers where are your fans? I have watched Itch games execute and completely disarm systems so that any data can be accessed and uploaded to foreign servers. This is bad enough, but I have also seen downloaded Itch games just foul and destroy computers, because someone or team thinks that is fun to do. Even with protections in place, naive users run some .exe and it overrides all security measures leaving their system vulnerable and completely open to attack, and the user doesn't even know what has happened. Similar activity takes place at Game Jolt and many other game sites that are presumed safe by users, but they are completely unsafe and programs are there waiting to be downloaded and run that will exploit, foul or destroy a system in seconds. Pretending that it can't and doesn't happen is just perpetuating a false sense of security. Users need to be aware that they must completely protect themselves and always be prepared for the worst by having a full and recent system backup. Trust no file, especially game files.