How companies can deal with insider data theft

To learn that your company's confidential data was stolen -- not by any hacker, but by an employee -- is a nightmare scenario that no one wants to face.But it's also a risk that's very real. The recent arrest of a former NSA contractor suspected of stealing classified government files is just the latest high-profile example, and security experts say all companies need to be on guard against potential insider threats.How serious is the threat?
It's not every day that thieving employees take