Cybercrime, FIN7 and RYUK groups are cooperating Truesec cybersecurity experts: Maybe the first one sold its TTPs to the ransomware gang, probably… Cybercrime, FIN7 and RYUK groups are cooperating 29 December 2020 Francesco Bussoletti Cyber, Defence and Security Truesec cybersecurity experts: Maybe the first one sold its TTPs to the ransomware gang, probably they are closely affiliated and may be part of the same network.