Whereas most people agree that trust has an instrumental value, there is a considerable debate about whether trust is a moral notion and hence is of moral significance. To defend their position that trust is morally significant, the authors present two arguments: (1) a breach of trust typically leads to a feeling of betrayal, a reactive attitude, which is only warranted in cases pertaining to morality, and (2) the belief in a moral obligation of the trustee can be justified by the concept of obligation-ascription.