
TRM Labs found 30 addresses tied to Mabna defendants received $16.8M. $15.5M went through one person. Crypto firms face contamination risk.
Blockchain intelligence firm TRM Labs identified roughly 30 crypto addresses linked to defendants in the Mabna Institute hacking case. Those addresses received about $16.8 million in total inflows between January 2018 and August 2026, the firm said. The addresses spanned Bitcoin and Ethereum, with TRON also in the mix.
The flows were heavily concentrated. Defendant Keyvan Fayaz controlled 10 of the addresses, and those alone accounted for roughly $15.5 million, or 92% of the cluster's total, according to TRM Labs.
A second defendant, Behzad Mesri, was associated with layered transactions. Those transactions ultimately routed toward a centralized exchange deposit. The residual balance across all 30 addresses stood at about $202,662, meaning nearly all of the $16.8 million had been moved or spent, TRM Labs said.
Mabna was founded around 2013 in Tehran. U.S. prosecutors describe it as a cyber-mercenary outfit working for the Islamic Revolutionary Guard Corps. The group allegedly compromised 144 U.S. universities and 178 foreign universities. It also targeted private companies and government entities, stealing more than 31 terabytes of data in the process.
The first federal indictment came in March 2018, charging nine defendants. An August 2026 superseding indictment added eight more names, bringing the total to 17 individuals facing charges related to cyber intrusions on behalf of Iranian state interests, the Department of Justice said.
On August 24, the U.S. Treasury Department designated five individuals connected to Mabna under what it called Operation Economic Outcast, invoking Executive Order 13902. That order identifies digital assets as a sanctionable sector, meaning entities that engage in significant Iran-related crypto activity now face secondary sanctions risk.
For crypto businesses, any address that interacted with the 30 flagged wallets, even indirectly through multiple hops, now carries elevated risk in transaction monitoring systems. The $16.8 million flowing through the network leaves a wide contamination radius for blockchain analytics exposure scoring. The Treasury’s invocation of Executive Order 13902 means exchanges that processed transactions for the flagged addresses could face secondary sanctions risk, particularly those that handled flows from Fayaz’s cluster.
The TRON component of the address cluster fits a pattern that U.S. authorities have flagged in multiple enforcement actions. TRON-based stablecoins, particularly USDT, have become a preferred rail for moving value across jurisdictions with limited banking access.
With 17 defendants indicted, five sanctioned, and a forensic trail stretching six years across three blockchains, the Mabna case provides one of the more detailed public examples of how state-linked actors use crypto infrastructure and how regulators intend to respond.
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