Services in connection with preventing access to computer networks by unauthorized third parties, namely, the installation of network filter lists and the installation and activation of network firewalls; installation of computer hardware; repair and maintenance of interactive networks and data processing, hardware systems; consulting services in the field of repair of networks and data processing systems

computer firmware; computers; and computer programs for networking of computers and their accessories; computer programs for providing security for networked computers, electronic mail systems, and other computer programs