[ben_jones]

The irony is that if someone managed to install a keylogger, they could've installed any other RATing tool such that the machine itself and everything it touches it completely compromised.

[Cpoll]

I imagine 99% of keyloggers are the 'put this on as many machines as possible and look for worthwhile logins' type, which are well-thwarted by this approach.

Anything more bespoke than that is probably much rarer.

[dddddaviddddd]

Might not necessarily apply to a hardware keylogger, which an attacker might use to reduce the risk of detection in software.