42 Rental, installation and maintenance of security and access control software, programs and applications for use in controlling access to computers, mobile devices, computer networks and resources, and for controlling access to websites, programs, databases, computer networks and resources from computers or mobile devices; computer security services, namely, enforcing, restricting and controlling access privileges of users to computer networks and resources based on assigned credentials; computer security services in the nature of access privilege enforcement services, namely, enforcing, restricting and controlling access privileges of users of computing resources for cloud, mobile, or network resources based on assigned credentials; software as a service (SAAS) services featuring software for use in access control and identity management in business to business, business to enterprise and business to consumer applications, and for enforcing, restricting and controlling access privileges of users of computing resources for cloud, mobile, or network resources; platform as a service (PAAS) services featuring computer software platforms for use in access control and identity management in business to business, business to enterprise and business to consumer applications, and for enforcing, restricting and controlling access privileges of users of computing resources for cloud, mobile, or network resources; and application service provider (ASP) services featuring software for use in access control and identity management in business to business, business to enterprise and business to consumer applications, and for enforcing, restricting and controlling access privileges of users of computing resources for cloud, mobile, or network resources; software as a service (SAAS) services featuring software for providing authentication, issuance, and validation of digital identity certificates for web-based software applications for computers and mobile computing devices; Platform as a service (PAAS) services featuring computer software platforms for providing authentication, issuance, and validation of digital identity certificates for web-based software applications for computers and mobile computing devices, and application service provider (ASP) services featuring software for providing authentication, issuance, and validation of digital identity certificates for web-based software applications for computers and mobile computing devices