Mr. Tatzky is a graduate of the Warsaw School of Computer Science. In the years 2008-2014 he was a leader of the Security Team at Inteligo Financial Services and from 2014 he manages the Computer Security Incident Response Team at PKO Bank Polski. In December 2015 he also became an ICT Security Expert of the Supervisory Board of Kredobank SA. He is a member of the International Information System Security Certification Consortium – (ISC)².