I am not a fan of the signature-based techniques used by VAC, et. al.
I've lost a few steam accounts to accurate but unintended (i.e., not actually cheating) detection of debugging tools attached to totally unrelated processes on the same machine. Having anything open like cheat engine or Tsearch while you join a lobby is a guaranteed ban no matter what. Ethical hacking and malicious hacking are indistinguishable from the perspective of this kind of machine-wide blind signature detection.
Statistical techniques can dramatically reduce false positives in cases like this. If someone at Valve had taken 10 seconds to review my stats during the detected interval, they should have been able to conclude I was not a threat to fair play.
I've lost a few steam accounts to accurate but unintended (i.e., not actually cheating) detection of debugging tools attached to totally unrelated processes on the same machine. Having anything open like cheat engine or Tsearch while you join a lobby is a guaranteed ban no matter what. Ethical hacking and malicious hacking are indistinguishable from the perspective of this kind of machine-wide blind signature detection.
Statistical techniques can dramatically reduce false positives in cases like this. If someone at Valve had taken 10 seconds to review my stats during the detected interval, they should have been able to conclude I was not a threat to fair play.