Treyarch Community Manager, Josh Olin, has posted the Security and Enforcement Policy for Black Ops on the [ Register or Signin to view external links. ]

Treyarch detail what you shouldn't do on Call of Duty: Black Ops and the punishments that will follow if you do.
The policy includes what you shouldn't do online, such as exploiting glitches, making offensive emblems, boosting, and modding. It also describes what will happen if you're caught.

Call of Duty: Black Ops - Security & Enforcement Policy

Modders

Users who have modified their hardware and have run hacked script or code. This includes modifying profile data to use illegal characters in a players name.


• Instant permaban. You will no longer be allowed to play the game online, and you will be reported to the console manufacturers.

Boosters (I got banned from boosting, 4 more days till im unbanned, i hope it doesnt include zombies leader boards)

Users who organize to exploit the game for the explicit purpose of ranking up very quickly or to appear in a high position on the leaderboards.


• Minor offense: Temp ban, complete stats reset, leaderboard entries removed once
  
  
• Major offense: Temp ban, complete stats reset, permanent ban from appearing on the leaderboards
  
  
• Extreme or repeat offenses: Permaban from playing the game online

Glitchers

Users who go out of their way to exploit the game to grief other players. An example would be going outside of the maps clearly defined playable boundary.


• Minor offense: Temp ban from playing the game online
  
• Major offense: Extended temp ban from playing the game online
  
• Extreme or repeat offenses: Permaban from playing the game online

Offensive emblem makers

Users who create emblems that are sexually gratuitous or racially offensive.


• Minor offense: 2-week ban from using the emblem editor, emblem reset to default, emblem purchases wiped
  
  
• Major offense: Permanent ban from using the emblem editor

So there you have it! Treyarch's stance on game exploits is aggressive but fair. Play legit and have fun, then you'll be safe. Happy gamin'!