That’s how much the world is going to spend on cyber-security in 2011, according to a new analysis by PricewaterhouseCoopers. And, unlike most defense spending, it’s going up. If you’re looking to get in on the action by buying a cyber-security firm, be sure to check out PwC’s handy M&A guide. Such outfits would make the perfect holiday gift for defense contractors heavily-invested in less robust areas (i.e., pretty much everything else).