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 cybersecurity and IOT devices; Computer security service, namely, restricting access to and by computer networks to and of undesired web sites, media and individuals and facilities; Computer security services in the nature of administering digital certificates; Computer security services in the nature of administering digital keys; Computer security services in the nature of providing authentication, issuance, validation and revocation of digital certificates; Computer security services, namely, enforcing, restricting and controlling access privileges of users of computing resources for cloud, mobile or network resources based on assigned credentials; Computer security services, namely, restricting unauthorized access to software and IOT devices; Computer security services, namely, restricting unauthorized network access by hackers and cyber criminals; Computer security threat analysis for protecting data; Software design and development; Computer software consulting; Computer software design, computer programming, and maintenance of computer software; Debugging computer software for others; Developing and updating computer software; Development of software for secure network operations; Maintenance of computer software relating to computer security and prevention of computer risks; Periodic upgrading of computer software for others; Troubleshooting of computer software problems; Updating of computer software relating to computer security and prevention of computer risks