All businesses may experience serious disruptions to their business operations. These disruptions may be caused by external events such as flooding, power failure or terrorism, or by internal factors such as human error or a serious computer breakdown. The probability of some events may be small, but the potential consequences may be massive, whereas other events may be more frequent and with shorter time horizons. The Joint Forum (the Basel Committee on Banking Supervision (BCBS), the International Organisation of Securities Commissions (IOSCO) and the International Association of Insurance Supervisors (IAIS)) have given additional background and context to the need for business continuity in its paper of August 2006 titled "High Level Principles for Business Continuity" (www.bis.org).