hacked off
hacked off: adj. [analogous to `pissed off'] Said of system
administrators who have become annoyed, upset, or touchy owing to
suspicions that their sites have been or are going to be victimized
by crackers, or used for inappropriate, technically illegal, or even
overtly criminal activities. For example, having unreadable files
in your home directory called `worm', `lockpick', or `goroot' would
probably be an effective (as well as impressively obvious and
stupid) way to get your sysadmin hacked off at you.
It has been pointed out that there is precedent for this usage in
U.S. Navy slang, in which officers under discipline are sometimes
said to be "in hack" and one may speak of "hacking off the C.O.".