42 Computer system design and engineering services; computer programming services; computer system integration services; computer hardware and software design; computer security consultancy; consulting in the field of information technology; computer software consulting; engineering services; consulting in the field of engineering; consulting in the field of computer and telecommunications network design; software application development and integration services in the fields of defense, environment, aerospace, aeronautical, intelligence, counter-intelligence, signals intelligence, simulation, national security, information assurance, information technology, and drug enforcement; technical consulting in the field of signals intelligence collection, analysis and dissemination; technical analysis in the field of computer network operations for intelligence and linguistics analysis; providing technical advice for secure computer communications and network infrastructures; computer security services in the nature of restricting unauthorized access to computer networks and websites; technology planning and consulting in the field of command, control, communications, computers, intelligence, surveillance, and reconnaissance matters for military and governmental purposes; technical support, namely, monitoring technological functions of computer network systems; testing of computers and computer software for others; consulting services in the field of environmental assessment and planning; technical consulting in the field of environmental engineering; testing and design of new products for others; computer forensics services; digital encryption analysis and digital decryption; data encryption and decoding services; computer intrusion support services, namely, penetration testing and network simulation services; computer network design and computer software design for healthcare systems; design of computer and communications networks for others; computer and communications network capacity consulting services; data warehousing; software application development services; enterprise network messaging services, namely, remote and on-site management of electronic messaging systems and applications for others; computer services, namely, website development and design services for others; web-based software application development services for others; designing secure websites for others; computer and communications network disaster recovery planning services; computer data recovery services; consulting services in the fields of computer application software development and computer network design; design and development of computer multi-media applications; technical support services, namely, trouble-shooting of computer software problems; technical support in the field of computer network security, namely, monitoring technological functions of computer network systems for detecting unauthorized use of network data; technical support services for computer security purposes, namely, 24/7 monitoring of network systems, servers and web and database applications and notification of related events and alerts; computer network security services, namely, scanning and penetration testing of computer networks to assess information security vulnerability; monitoring of computer networks for security purposes, namely, restricting unauthorized access to computer networks; computer security services, namely, protecting data and information in computer networks from unauthorized access