Major tech companies such as Facebook and Twitter are interested in hiring workers with top-secret security clearances as they deal with foreign meddling on their platforms and come under increased risk of hacks, reports Bloomberg. From the article: In doing so, companies such as Facebook are competing with defense contractors, financial firms and the U.S. government itself. Security clearances are a rare and valued commodity, whether at a bank trying to prevent hackers from stealing credit-card data and emptying accounts or at a manufacturer building parts for a stealth fighter or missile-defense radar system. Bringing former government cyber warriors on board at companies can facilitate interactions with U.S. agencies like the NSA or CIA as well as help the firms understand how to build stronger systems on their own. "They have the tradecraft," said Ronald Sanders, a former associate director of the Office of the Director of National Intelligence and now director of the school of public affairs at the University of South Florida. "And the trade craft is some of the best in the world."