Russian cybercriminals must pledge allegiance to not hacking Russians, as well as helping authorities. Rule No. 1: Russians must not hack Russians, or anyone else in a nation that formerly was part of the Soviet Union. Rule no. 2: If a Russian intelligence service asks for your help, you provide it. Rule 3: Watch where you vacation; rule no. 3: Russian authorities never extradite Russians. Russian authorities have arrested suspects in the Maldives, Frankfurt, Cyprus and Amsterdam in recent years.”]
Source: https://www.cuinfosecurity.com/blogs/russian-cybercrime-rule-no-1-dont-hack-russians-p-1934