Liability insurance payable to the directors and officers of a company, or to the organization(s) itself, as indemnification (reimbursement) for losses or advancement of defense costs in the event an insured suffers such a loss as a result of a legal action brought for alleged wrongful acts in their capacity as directors and officers. Such coverage can extend to defense costs arising out of criminal and regulatory investigations/trials as well; in fact, often civil and criminal actions are brought against directors/officers simultaneously. Intentional illegal acts, however, are typically not covered under D&O policies.
It has become closely associated with broader management liability insurance, which covers liabilities of the corporation itself as well as the personal liabilities for the directors and officers of the corporation.
The insurance is closely related to corporate governance, corporations law, and the fiduciary duty owed to shareholders or other beneficiaries.