The US Treasury Office of Foreign Assets Control on Friday designated Shelbit, a cryptocurrency exchange suspected of facilitating transactions for Iran-based users and evading American sanctions, following what officials describe as $4 billion in illicit activity.
Shelbit was one of two Iran-linked exchanges penalized in the action. The designation freezes any assets Shelbit holds in the US financial system and bars American persons and entities from transacting with the platform. The exchange's operator did not immediately respond to a request for comment.
The $4 billion figure covers transactions processed through Shelbit between 2024 and 2026, according to Treasury's designation notice. The exchange operated as a peer-to-peer trading platform, allowing users to buy and sell cryptocurrency without traditional identity verification, a structure commonly used to obscure transaction origins and evade sanctions screening.
Treasury has widened its enforcement posture on Iran-linked crypto activity since 2023, when it first sanctioned multiple exchanges for operating without proper sanctions controls. Friday's action marks the second major wave of designations targeting platforms suspected of serving Iranian users and entities. The agency has not disclosed whether Shelbit's operators face criminal charges.
Crypto compliance firms have flagged peer-to-peer exchanges as a persistent vulnerability in sanctions enforcement. These platforms allow direct wallet-to-wallet transfers that bypass centralized transaction monitoring, making detection of Iran-based activity depend on blockchain analysis rather than transaction reporting.
The designation exposes potential liability for crypto platforms, custodians and exchanges that have held or processed Shelbit tokens or conducted swaps involving the exchange's assets. Any US person or entity that knowingly facilitated transactions through Shelbit after notice of the designation faces civil penalties of up to 20 percent of the transaction value or $5 million per violation, whichever is larger.
Shelbit's closure represents a test of whether sanctions enforcement can keep pace with decentralized trading infrastructure. The platform's peer-to-peer model allowed users to trade without creating persistent accounts, limiting the forensic trail available to investigators and compliance teams checking their transaction histories against sanctions lists.
