42 Rental of software for data processing; providing temporary use of on-line non-downloadable software for processing electronic payments; information technology consulting; IT services; information technology [IT] consultancy; electronic data back-up; design of computer hardware and software; design and development of computer hardware and software; providing information about the design and development of computer hardware and software; updating of computer software; updating of computer programs; updating of computer programs for third parties; updating and adapting of computer programs according to user requirements; design and development of computer hardware; professional advisory services relating to computer hardware; consultancy in the design and development of computer hardware; hosting computer sites [web sites]; installation, maintenance, repair and servicing of computer software; recovery of computer data; encryption, decryption and authentication of information, messages and data; conversion of data or documents from physical to electronic media; programming of software for database management; data duplication and conversion services, data coding services; IT security, protection and restoration; user authentication services using single sign-on technology for online software applications; user authentication services using technology for e-commerce transactions; computer programming services for electronic data security; cloud-based data protection services; authentication services for computer security; data recovery services; computer security services in the nature of administering digital certificates; provision of security services for computer networks, computer access and computerised transactions; IT services for data protection; computer security services for protection against illegal network access; computer programming; development of data bases; maintenance of data bases; design of computer database software; design, development and implementation of software; design of information systems relating to finance; design of information systems; designing of data processing programmes; design and development of software for database management; design and development of software for importing and managing data; rental of computer hardware and computer software; constructing an Internet platform for electronic commerce; software development, programming and implementation; electronic data storage; design and development of data storage systems; certification of data via blockchain; data storage via blockchain; blockchain as a service [BaaS]