Endpoint security platforms have become commonplace on end-user devices and Internet-facing systems. In addition to malware and spyware protection, an enterprise-grade endpoint security platform typically provides some kind of device firewalling, intrusion prevention and data loss prevention capabilities. Symantec is the worldwide leader in enterprise protection market share for enterprises and consumers, according to Gartner. McAfee's enterprise protection platform ranks second in market share worldwide, Gartner said. Security experts say both firms have grown through extensive acquisitions over the years. CRN pits the two competitors head-to-head.