TESSIS: Technologies, Systems and Solutions for Information Security TESSIS is a distributor of key software and hardware vendors for hi-tech technologies and information security in Russia. TESSIS is an official distributor for Safenet and CYREN, has Blackberry® Reseller status and offers complex security solutions, and encryption solutions for securing communication systems, programs, and digital identity control, also corporate and private virtual environments. State enterprises and commercial companies, and all those who want to secure their data are TESSIS customers and partners.