15 U.S.C. § 687f

Wherever a licensee violates any provision of this chapter or regulation issued thereunder by reason of its failure to comply with the terms thereof or by reason of its engaging in any act or practice which constitutes or will constitute a violation thereof, such violation shall be deemed to be also a violation and an unlawful act on the part of any person who, directly or indirectly, authorizes, orders, participates in, or causes, brings about, counsels, aids, or abets in the commission of any acts, practices, or transactions which constitute or will constitute, in whole or in part, such violation.

It shall be unlawful for any officer, director, employee, agent, or other participant in the management or conduct of the affairs of a licensee to engage in any act or practice, or to omit any act, in breach of his fiduciary duty as such officer, director, employee, agent, or participant, if, as a result thereof, the licensee has suffered or is in imminent danger of suffering financial loss or other damage.