Secure transmission apparatus; Secure transmission instruments; Data security apparatus; Data security instruments; Security apparatus for computers; Security devices for computer hardware; Security devices for computer software; Telecommunications security instruments; Data encryption apparatus

Computer firewall services; Data security services (firewalls); Computer security services (design and development of secure computer hardware, software and systems); Computer security consultancy; Computer security engineering; Computer security services (programming and software installation repair and maintenance services); Computer security services (testing and risk assessment of computer networks); Network security services (test and risk assessment of electronic networks); Security assessment services for computer networks; Security risk assessment services relating to computer systems; Data encryption services