Authentication, issuance and validation of digital certificates; 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 controlling drones, robots, aerial vehicles, land vehicles, and water vehicles; Computer security service, namely, hard drive erasure; 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 threat analysis for protecting data; Data security consultancy; Design and development of electronic data security systems; Design and development of home security systems; Development of security systems and contingency planning for information systems; Development of software for secure network operations; Engineering and system analysis in the field of home security systems; Internet security consultancy; Maintenance of computer software relating to computer security and prevention of computer risks; Providing a secure electronic online system featuring technology which allows control of drones, robots, aerial vehicles, land vehicles, and water vehicles; Providing a website that features technology that enables the secure exchange of information by users; Providing technology information updates for home security systems via the global computer network; Providing user authentication services using biometric hardware and software technology for controlling drones, robots, aerial vehicles, land vehicles, and water vehicles; Recording software protection programs and security programs onto magnetic media; Technical support, namely, monitoring technological functions of computer network systems; Testing of security systems; Updating of computer software relating to computer security and prevention of computer risks