From Longman Business Dictionarybreach of fiduciary dutyˌbreach of fiˌduciary ˈduty (plural breaches of fiduciary duty) noun [countable, uncountable]LAW when a person or company who has responsibility for managing other people’s money fails to protect the interests of the people whose money they are managingThe company was in breach of fiduciary duty to the songwriters by keeping 75% of their royalties.
