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 fields of distributed ledger technology, blockchain technology, and cryptocurrencies technology; Computer security services in the nature of administering digital certificates; Computer security services in the nature of administering digital keys; Computer security threat analysis for protecting data; Computer technology consultancy; Development of customized software for others for use in risk assessment, information security, business analysis, audit and audit planning, and sales management; Development of software for secure network operations; Electronic storage of cryptocurrency for others; Information technology consulting services; Internet security consultancy; Maintenance of computer software relating to computer security and prevention of computer risks; Providing technology information in the field of cryptocurrency; Providing a website featuring technology enabling users to remotely view, monitor, program, operate and control large and small appliances, electrical systems and security systems in homes, offices and vehicles; Providing a website featuring technology that enables users to generate printable cryptocurrency wallets; Providing a website that features technology that enables the secure exchange of information by users; Providing on-line non-downloadable computer software for use as a cryptocurrency wallet; Providing on-line non-downloadable software for generating cryptographic keys for receiving and spending cryptocurrency; Providing temporary use of non-downloadable web-based decentralized applications (DApps) for monitoring of computer systems for security purposes; Providing user authentication services using biometric hardware and software technology for e-commerce transactions in the fields of distributed ledger technology, blockchain technology, and cryptocurrencies technology; Software as a service (SAAS) services featuring software for e-commerce transactions in the fields of distributed ledger technology, blockchain technology, and cryptocurrencies technology; Software as a service (SAAS) services featuring software using artificial intelligence for e-commerce transactions in the fields of distributed ledger technology, blockchain technology, and cryptocurrencies technology; Technological consulting in the field of cryptocurrency; Testing of security systems; Updating of computer software relating to computer security and prevention of computer risks