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development, design, implementation, testing, analysis, and consulting service for computers, computer hardware and computer networks; providing access, authorization, authentication encryption, and identification software systems for computers, computer hardware and computer networks; security verification of computer network firewalls, servers and other network devices from unauthorized access, namely, analyzing global computer information network and internal computer network vulnerability; issuance, certification and management of digital certificates; development of computer programs for issuance and management of digital certificate; computer virus detection services; computer consulting services in the field of security integration, network security, network architecture, encryption technology, and computer security; providing user identity authentication services in ecommerce transactions; providing software technical support service relating to authentication for computer security; computer security services in the nature of providing an internet trust center, namely, computer security assurance and administration of digital keys and digital certificates; rental of comput-er software; computer software design; installation of computer software; updating of computer software; maintenance of computer software; computer system design; computer system analysis; duplication of computer programs; consultancy in the field of computer hardware; computer programming