Riverhead Networks develops security technology that protects against distributed denial of service attacks and other security threats in enterprise and service provider networks. It delivers solutions that protect online operations by detecting and blocking malicious traffic without impacting business transactions. The company serves service providers, hosting centers, and online enterprises. Riverhead Networks, Inc. was formerly known as WANWall, Inc. The company was founded in 2000 and is headquartered in Cupertino, California.