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.".