In which case the zero day isn't a real excuse. 0-day exploits aren't the problem. You're focusing on just one type of malware behavior. Even if all of our so

In which case the zero day isn't a real excuse. 0-day exploits aren't the problem. You're focusing on just one type of malware behavior. Even if all of our software today was free of exploits, it wouldn't do anything to stop the bad guys from building trojan horses, and using that to bootstrap into broader pwning.