[userbinator]

...or the more interesting and perhaps less plausible explanation: someone who doesn't toe the line, someone who was trying to "take down the system from within"...

I often wonder what goes through the minds of those whose work helps companies exert more control over their customers. Maybe some of them are not so "obedient" after all...

[pcwalton]

Hanlon's Razor suggests otherwise. People said that the Windows Metafile bug in 2005 was a backdoor, which was obviously wrong.