Computer security consultancy in the field of computer virus scanning software; 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, 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 computer networks; Computer security services, namely, restricting unauthorized network access by users without credentials; Computer security threat analysis for protecting data; Development of customized software for others for use in risk assessment, information security, business analysis, audit and audit planning, and sales management; Development of security systems and contingency planning for information systems; Development of software for secure network operations; Internet security consultancy; Maintenance of computer software relating to computer security and prevention of computer risks; Updating of computer software relating to computer security and prevention of computer risks; Rental of computers relating to computer security and prevention of computer risks