Human beings are experts at identifying and managing risk. Whether it is chasing bison across the prairies or sailing into uncharted waters, risk management has been vital to our successful evolution and survival as a species through the ages.

Your typical City lawyer, of course, faces a different kind of risk from the adrenalin-fuelled and short-run life of our early ancestors. It is a risk that comes in the form of an ill-judged hire or risque e-mail and the consequences of failing to understand, manage and contain these threats read like a catalogue of catastrophe: ruined reputations, insolvency, mass job losses, legal proceedings, jail time and personal bankruptcy.