Computer security consultancy; Computer security consultancy in the field of scanning and penetration testing of computers and networks to assess information security vulnerability; Computer security consultancy in the field of blockchain; Data security consultancy; Development of software for secure network operations; Development of customized software for others for use in risk assessment, information security, business analysis, audit and audit planning, and sales management; Internet security consultancy; Maintenance of computer software relating to computer security and prevention of computer risks; Providing user authentication services using biometric hardware and software technology for enterprise businesses; Recording software protection programs and security programs onto magnetic media; Updating of computer software relating to computer security and prevention of computer risks