In our 23-criteria evaluation of cloud security gateway (CSG) providers, we identified the eight most significant ones — Bitglass, Blue Coat/Symantec, CipherCloud, CloudLock/Cisco, Imperva, Microsoft, Netskope, and Skyhigh Networks — and researched, analyzed, and scored them. This report shows how each provider measures up and helps security and risk (S&R) professionals make the right choice.