Backdoors in the OS or firmware?

I always use Linux, so I don't care what software it came with. If you're suggesting there are firmware backdoors, I'd like to see your evidence.

There have been known vulnerabilities in ASUS firmware, but I was referring to Armoury Crate which is forcefully pushed on Windows users.

> I'd like to see your evidence.

I think this is a really bad epistemological stance in this case.