Malfeasance:the performance by a public official of an act that...

Malfeasance:the performance by a public official of an act that is legally unjustified, harmful, or contrary to law; wrongdoing (used especially of an act in violation of a public ...

Nonfeasance

The intentional failure to perform a required duty or obligation.
Nonfeasance is a term used in Tort Law to describe inaction that allows or results in harm to a person or to property. An act ofnonfeasance can result in liability if (1) the actor owed a duty of care toward the injured person, (2) the actor failed to act on thatduty, and (3) the failure to act resulted in injury.