Could anyone tell me if there's a way I can trust an application I'm running on my computer. Like a video game, for example, or the launcher of that video game.
How can I know if, Counter-Strike for example, did or is doing anything malicious?
I understand that some big video game titles might be safer for how many people experiment with them and for other reasons, like them not wanting to risk the huge commerce value they have by breaching user's privacy. I'm trying to know how are they practically trusted and if there's any way those apps' activities are seen and examined fully or if there's a chance something is not being detected.
A big video game title can have the guise of commerce, but be for the same reason the best method to spy on people in big numbers.
I'm worried of things like, for malicious intents, stealing login credentials for other unrelated services that I use, seeing my PC's name or username, my network's name, my emails, my social media accounts, my documents, my pictures and files in general, getting access to microphones or webcams, using my PC as a proxy for anything malicious, setting up remote access, or anything very malicious that I might have not thought about.
Some of those breaches is not a big deal, but some are really things I don't want to risk.
I remember reading somewhere that there's no way at all of knowing what an exe does on a computer. How true is that?
Is there any easy safety measures I can take? Do popular games like those get examined thoroughly by experts? I want to trust those apps. How can I do so?
I wonder if anything malicious caused by something like I mentioned happens, then could it cause the computer to be forever ridden with whatever it caused? Or is that too difficult for an application to cause?
If such apps were examined by the best experts, then how likely is it that something goes undetected?
How can I look for suspicious activity of an app? Can I analyze the thing myself? How reliable can a beginner's analysis (mine) be? Or does it rely more on the tools used?