DeadLock ransomware uses blockchain to resist infrastructure takedown

The DeadLock ransomware group has innovated its infrastructure by storing configuration data and leak site content on the Polygon blockchain, making traditional law enforcement takedown tactics largely ineffective. By combining decentralized blockchain storage with the encrypted Session messaging network, the group has engineered a resilient command-and-control architecture that cannot simply be seized or disabled. This double-extortion operation — encrypting data while threatening to publish it — compounds victim pressure significantly. The shift to decentralized infrastructure signals a broader trend where criminal groups adapt faster than law enforcement response frameworks, making organizational self-defense the primary line of protection. Organizations, particularly those in European sectors targeted by this group, must assume that attacker infrastructure will persist and focus on internal resilience rather than expecting takedowns to neutralize the threat.