Organizing and conducting auctions, organizing and conducting electronic auctions, organizing and conducting electronic reverse auctions, online auction services, holding interactive virtual auctions, organizing Internet auctions, organizing and coordinating auctions via the Internet, organizing and conducting auctions and reverse auctions via computer and telecommunications networks, organizing and holding auctions and reverse auctions via mobile telephones.

Certified email services, certified email sending services, transmission of digital files and certified email messages, transmission of digital information, electronic transmission of documents, electronic transmission of encrypted data, electronic messaging services, protected electronic messaging services, secure electronic messaging services.

Digital certification entity services, digital certification service provider, digital signature generation service, hosting of Internet platforms for issuing centralized signature certificates, time stamping of documents and messages, external data custody services, secure custody services for electronic documents, registration of messages, data and information stored in digital format containing digital signatures or digital stamps, creation of backup copies of electronic data, electronic information storage service, electronic storage services for digital certificates, archived documents and e-mail messages, electronic storage services for archiving electronic data, electronic data storage services for archiving databases, documents and other electronic data, secure server certificate services, data encryption services and consulting on computer and Internet security, design and development of electronic data security systems, electronic data security computer programming services, technological services relating to computer data security, technological services relating to personal information security, technological services relating to digital security and identity, cryptography and computer security services, electronic authentication services, user authentication services by technological means, development and updating of digital signature generation software, development of digital certification software solutions, design, maintenance, and updating of digital certification and electronic security service software, installation and configuration of digital certification products and services, software installation, creation, development and maintenance of public key infrastructure.