I got one as part of a discount bundle of software that I bought once (MacHeist or something like that). I've used it twice, just out of curiosity. The first ti

I got one as part of a discount bundle of software that I bought once (MacHeist or something like that). I've used it twice, just out of curiosity. The first time, it found some malicious cookies. The second time, nothing. That's over two years on the same machine.