Denial-of-reputation

Definition
A denial-of-reputation is

"a concerted campaign to damage the reputation of an entity, in order to isolate the victim &mdash; effectively performing a subtle lock-out of the victim, often with the intention to extort. Denial-of-reputation is performed by falsely reporting on the victim's reputation (i.e. performing bad mouthing by means of collusion or using sybils), or by stealing the victim's identity and misusing his reputation. Then, the victim is blackmailed (extortion) in order to have the reputation cleaned."