Dispossessor, also known as Radar, emerged as a cybercrime group in August 2023, initially focusing on data exfiltration and extortion before evolving into a ransomware-as-a-service (RaaS) operation by mid-2024. The group is assessed with moderate confidence to be of European origin, possibly Poland, and was led by an individual using the moniker 'Brain'. Their primary motivation was financial gain through a dual-extortion model, involving both data encryption and exfiltration, and uniquely, they employed aggressive tactics such as proactively contacting multiple individuals within victim organizations via phone and email to exert additional pressure for ransom payments. Dispossessor's operational infrastructure, including their RaaS platform and data leak site, reportedly leveraged leaked source code from the LockBit ransomware group. The group was ultimately disrupted and dismantled by a coordinated international law enforcement effort led by the FBI in August 2024.

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