Pentagon to focus more on hack-proofing weapons

By Andrea Shalal WASHINGTON (Reuters) - Cyber attacks on U.S. weapons programs and manufacturers are a "pervasive" problem that requires greater attention, the top U.S. arms buyer said Thursday, saying that he would add cybersecurity to the Pentagon's guidelines for buying weapons. "It’s about the security of our weapons systems themselves and everything that touches them. It’s a pervasive problem and I think we have to pay a lot more attention to it," Defense Unders