Spring may be my favorite time of year. The snow is melting, the sun is shining, and the air smells just a little bit fresher. It's as though the world is setting an example for the rest of us, letting us know that it's time to start fresh. It's time for spring cleaning -- and in the security world, spring cleaning means more than just wiping down countertops and lighting a few scented candles. Spring is the perfect time to dust off your network security policies, reevaluate them, and gauge whether they are still effective.