Corero Network Security plc is a provider of Distributed Denial of Service (DDoS) defense solutions. The Company's DDoS protection solutions provide automatic detection and mitigation of DDoS attacks for Internet service providers, hosting providers and the online enterprise. It operates through Corero Network Security segment. Its product offering includes SmartWall Threat Defense System (TDS), which is a network security appliances configurable to meet the needs of service and hosting providers and online enterprises, all of which are impacted by the challenges of DDoS attacks. The SmartWall TDS appliances include SmartWall Network NTD Appliance and SmartWall Network Bypass Appliance. It provides SecureWatch PLUS, which offers a suite of DDoS defense configuration, optimization, around the clock monitoring and attack mitigation services. Its technology provides a First Line of Defense against DDoS attacks. It has presence in North America, the United Kingdom and Other countries.