IBM’s annual Cost of a Data Breach Report provides IT, risk management and security leaders with timely, quantifiable evidence to guide them in their strategic decision-making. It also helps them better manage their risk profiles and security investments. This year’s report—the 19th of  the series—reflects changes caused by technological shifts, such as the rise of shadow data, which is data residing in unmanaged data sources, and the extent and costs of business disruption brought about by data breaches.