Microsoft Corp. (MSFT), the world’s largest software company, provides intelligence agencies with information about bugs in its popular software before it publicly releases a fix, according to two people familiar with the process. That information can be used to protect government computers and to access the computers of terrorists or military foes.

http://www.bloomberg.com/news/2013-06-14/u-s-agencies-said-to-swap-data-with-thousands-of-firms.html