As recently as May 2013, we read about the loss of $45 million from the banking industry. One federal official called it a 21st century bank heist, where the tools were laptops and the Internet, instead of guns and masks.
While no one tool or technology is capable of total protection of the enterprise, utilizing data loss prevention, encryption and other tools to create a defense in depth strategy will help to mitigate issues which can cause damage to brand reputation, regulatory fines, and other expenses which can cost over $194 per record lost.
This kind of strategy is also rapidly becoming the standard of due care. Due care refers to the effort made by an ordinarily prudent or reasonable party to avoid harm to another, taking the circumstances into account. This is the standard that the courts use to determine whether or not the organization has done its job in protecting the data under its control.