Computer security engineering; computer security services (design and development of secure computer hardware, software and systems); computer security services (programming and software installation, repair and maintenance services); computer security services in the nature of providing authentication, issuance, validation and revocation of digital certificates; data security services (firewalls); identity validation (computer security); research relating to computer security; security risk assessment services relating to computer systems; verification of personal identification (computer security); network security services (test and risk assessment of electronic networks); security assessment services for computer networks; computer security services (testing and risk assessment of computer networks); computer network services; computer security consultancy; data security consultancy; internet security consultancy; telecommunication network security consultancy; technological consultancy; computer virus protection services; technical support services in the nature of monitoring, detecting, diagnosing, remediating, mitigating and resolving cybersecurity issues; technical support services in the nature of architecture reviews, vulnerability assessments, device and application penetration tests, network penetration tests, and threat hunting for of computer systems, industrial control systems, and networked devices; consulting services in the field of cybersecurity; consulting services in the field of management, monitoring, evaluation, control, analysis, investigation and security of computer systems, industrial control systems, and networked devices; design and development of cybersecurity systems; development, design, implementation, testing, analysis, and consulting services in the field of security, networks, access, authorization, authentication encryption systems for computers, industrial control systems and computer networks