Longhorn HD LLC has added cases against Lanner Electronics (2:20-cv-00260), Palo Alto Networks (2:20-cv-00259), and Sophos (2:20-cv-00261) to the more recent of its two litigation campaigns. The NPE accuses each defendant of infringing the same three network security patents, acquired from Intellectual Ventures LLC (IV), through the provision of “security gateways, routers, control system security appliance, clouds, and components and software that provide firewall, VPN, IPSec, DNS, IDS/IPS, and selective network address-based communication, mobile security, and threat protection”, targeting a wide variety of products.