Microsoft's deadline to end support for Windows XP is April 8, and while most PCs haven't used the operating system in years, there's a certain computer you interact with on a regular basis that probably still relies on it. The 12-year-old software powers more than 95 percent of the world's cash machines, Robert Johnston, a marketing director at NCR, the largest ATM supplier in the U.S., told Bloomberg Businessweek. Microsoft's pledge to stop providing patches to address bugs could leave ATMs vulnerable to hacking.

http://www.bloomberg.com/news/2014-04-03/six-things-you-need-to-know-about-atms-and-the-windows-xp-ocalypse.html