Weapons of mass data destruction

There's more to IT security than protecting the valuable data an enterprise obtains, uses and stores. How you dispose of it when the hardware it’s sitting on reaches end-of-life should be a major concern too. These days, only a fool thinks clicking 'delete' is enough to wipe data from a hard drive or that a quick disk reformat will do the trick. Smashing the drives with a hammer isn’t a smart move either. So how should the enterprise tackle this problem, and what are the best weapons of data destruction? IT Pro has been investigating.