/briːtʃ ʌv ˈlɔɪəlti/ – Phrase
Definition: Vi phạm lòng trung thành.
A more thorough explanation: an act that is in violation of a legal duty of a person in a position of trust to act in the best interests of another person or organization, especially where the act is done for self-interest
Example: It was held that evidence of plans to “divert” funds to an affiliate was sufficient to support a breach of loyalty claim.