42 Technical consultation in the fields of computer hardware, computer software, computer networks, secure network access, and secure infrastructure access; installation, updating and maintenance of computer software; secure infrastructure and network access services, namely, monitoring of secure network systems for others; computer security service, namely, restricting access to and by computer networks to and of undesired web sites, media and individuals and facilities; technical support services, namely, troubleshooting of computer hardware, computer software and secure computer networks; and design and development of secure networks