GS0421: Hosting computer web sites of others; creating and maintaining web sites for others; computer programming for others; computer software design for others; updating of computer software for others; consultancy in the field of computer hardware and software; maintenance of computer software; computer systems analysis; installation of computer software; designing computer software and computer security systems for others; computer and software security consultation services; computer and software security analysis services; computer consultation in the field of security architectures, policies and practices; computer consultation services regarding Internet and network security; systems security engineering; software systems integration services; computer project management services; licensing of intellectual property
GS0451: Security evaluation and security testing of computer systems; computer security risk assessments