Mobbing is typically found in work environments that have poorly organized production and/or working methods and incapable or inattentive management. According to [1], mobbing victims are usually "exceptional individuals who demonstrated intelligence, competence, creativity, integrity, accomplishment and dedication".
A longer-established technical use of mobbing is in the study of animal behaviour, especially in ornithology, where it refers to the behaviour of a number of smaller birds together harassing a bird of prey that represents a threat to them.
Further reading
[1] Noa Davenport et al., Mobbing: Emotional Abuse in the American Workplace (1999)