The US Treasury has sanctioned the A7 Network, a Russia-linked crypto payment system accused of moving over $17 billion using ruble-backed tokens and USDT to dodge restrictions.
The US Treasury has stepped up its crackdown on illegal crypto flows by sanctioning the A7 Network. This Russia-linked payment system is accused of moving billions through digital assets and a web of intermediaries. The sanctions freeze any assets under US control and warn global exchanges and brokers to check for ties to A7's hidden network.
Sanctions hit crypto middlemen
Unlike earlier actions that singled out specific companies, the Treasury now labels A7 as a major transnational criminal group. This means the sanctions cover the whole network, including any entity that is at least 50% owned by sanctioned parties. US financial institutions must freeze and report any property or interests linked to A7 or its sub-agents. The Office of Foreign Assets Control (OFAC) will enforce these rules.
FinCEN estimates that A7 sub-agents processed over $17 billion in transactions between January 2025 and June 2026, highlighting the network's vast scale.
At the same time, the Financial Crimes Enforcement Network (FinCEN) has put forward a rule that would stop covered financial institutions from sending funds involving A7 sub-agents. This proposal is now open for public comment. If adopted, banks and exchanges would have to block or reject any transactions tied to A7's network, including crypto addresses managed for sub-agents. FinCEN plans to share a list of these sub-agents through its secure FI-Portal, and will require firms to set up risk-based checks to spot banned transactions.
How A7 moved money
A7's system relies on its own ruble-backed token, A7A5, which acts as an internal accounting and settlement tool. The Treasury says A7A5 is backed by ruble deposits at the sanctioned Russian bank PSB. The network often swaps A7A5 for more liquid digital assets, mainly Tether's USDT, to make international payments and hide where the money comes from. This process has put a spotlight on exchanges, OTC brokers, and liquidity providers outside Russia, who might unknowingly process transactions that disguise sanctioned activity as normal trade.
FinCEN says A7 sub-agents handled more than $17 billion in dollar-denominated transactions from January 2025 to June 2026. In January, the network itself claimed it was processing over 2,000 transactions a day, with a total value of $91.5 billion. That's about 13% of Russia's 2025 foreign trade, according to Treasury data.
The US Treasury described A7 as a 'shadow banking network with ties to Russia' and noted its infrastructure was used to support Iran and evade sanctions. OFAC's October 2026 action automatically extends to any entity directly or indirectly owned 50% or more by A7, requiring global financial institutions to implement risk-based controls.
Compliance pressure on exchanges
Crypto exchanges and financial firms with US ties now face tough compliance demands. They must figure out if their counterparties, wallet addresses, or payment routes involve A7 property, even if the link is indirect. Once FinCEN releases its sub-agent list, exchanges and OTC desks will have to tighten their checks and may need to block or reject transactions that touch A7's network.
The crackdown is not just about Russian actors. The Treasury says A7's payment rails have also helped Iran's central bank, the Islamic Revolutionary Guard Corps, and others trying to dodge sanctions. The network uses trade documents and payment instructions to make restricted transactions look like regular business, making it even harder to spot and stop.
US authorities are now watching crypto payment systems more closely. The rules are widening to cover not just direct players, but also intermediaries and liquidity providers. This matches recent enforcement in other countries, where exchanges and payment processors are being told to find and block sanctioned flows. For example, reported earlier coverage has shown how payment rails can quickly adapt for cross-border crypto use, creating new compliance risks for global platforms.
FinCEN's proposed rule is open for public comment for 30 days after it appears in the Federal Register. But the OFAC sanctions are already in force. The next step will show how well exchanges and brokers can spot indirect links to A7's network, especially as the Treasury and FinCEN add more entities and addresses to their lists.
Transaction volume and network claims
FinCEN says A7 sub-agents processed over $17 billion in dollar-denominated transactions from January 2025 through June 2026. The Treasury reported that in January, A7 claimed to handle more than 2,000 transactions per day, with a total value of $91.5 billion. That's about 13% of Russia's 2025 foreign trade. These numbers show just how big A7's operations are and how far the new sanctions could reach.
Staying compliant in crypto now depends on tracing indirect exposure through tangled networks of middlemen. Unlike traditional finance, where correspondent banking is well documented, crypto transactions can pass through many wallets, brokers, and exchanges before reaching their end point. This makes it hard for compliance teams to know when a transaction is tied to a sanctioned group, especially when tokens like USDT are used to bridge restricted and unrestricted assets. As regulators widen their focus to include sub-agents and liquidity providers, exchanges and financial firms will need better monitoring and screening tools to avoid accidental violations and keep access to global markets.
