Failure of Friendliness
From The Transhumanist Wiki
From the SL4 Lexicon:
Failure of Friendliness (FoF):
A mistake causing an otherwise Friendly AI to take one or more unFriendly actions, perhaps due to an error in supergoal content or a misapprehension about external reality. The error may or may not be recoverable Yudkowsky01. See also Catastrophic Failure of Friendliness.