“New information from inside sources close to the counterintelligence investigation indicates that the officer in question, Zbigniew J., is a lieutenant colonel serving in the Ministry of Defense (you can see a blurred photo of him here). He has been working for GRU for several years, and has been on the radar of Polish military counterintelligence since 2011, and his motivations were financial, along with vague ‘personal problems.’”
Source:Here’s What We Know About Spies Arrested In Poland – Business Insider