As the largest data breach in history unfolded, most executives were both disappointed that it occurred to a great American brand like Target, and relieved that it missed them—for now. The massive breach and its resulting fallout is a stark reminder to senior executives and boards of U.S. companies that they will remain vulnerable 24x7x365 until they strategically retool their security to effectively fight in today’s full-scale economic war. What we did yesterday in security is no longer relevant.