Which crypto mixers are currently sanctioned by OFAC?

OFAC has sanctioned two cryptocurrency mixing services: Blender.io, designated in May 2022 as the first mixing service ever sanctioned by OFAC (used to launder proceeds from the Ronin/Axie Infinity hack); and Tornado Cash, designated in August 2022. Treasury removed Tornado Cash from the SDN list in March 2025, after the Fifth Circuit's Van Loon v. Treasury ruling. Some exchanges still screen Tornado Cash interactions, and other mixers, though not sanctioned, create serious compliance risk at regulated exchanges.

Does Railgun carry the same compliance risk as Tornado Cash?

Railgun is a privacy protocol with a different technical architecture from Tornado Cash and is not currently OFAC-sanctioned. However, blockchain analytics firms and exchange compliance teams treat Railgun interaction as a high-risk signal — similar to how they treat non-sanctioned mixers. The distinction matters: Railgun interaction is not a sanctions violation, but it can still trigger exchange holds and documentation requests. Plastron flags Railgun interactions as mixer exposure with High (not Critical) severity.

How does indirect mixer exposure through a counterparty affect my wallet?

If you received ETH from a wallet that had previously deposited to or withdrawn from a mixer — even if you had no direct mixer interaction — your wallet has indirect mixer exposure. In a Plastron scan, its severity depends on the hop distance between the mixer interaction and your wallet and on the share of value traced back to the mixer. Major exchanges apply blockchain analytics that detect this indirect relationship and flag your deposit for enhanced review.

Answer

A mixer exposure check detects whether a wallet interacted with cryptocurrency mixers like Tornado Cash that flag AML systems; Plastron identifies direct and indirect mixer exposure free across seven EVM chains.

Cryptocurrency Mixer Exposure Check

Crypto mixers are the most common AML trigger at regulated exchanges. Even indirect exposure through a counterparty can freeze your account.

Cryptocurrency mixers — services and protocols that break the transaction link between sending and receiving addresses — are classified as high-risk money laundering vehicles by every major financial regulator. The landscape includes centralized mixing services, smart contract protocols like Tornado Cash and Railgun, and Bitcoin-focused tools like Wasabi Wallet's CoinJoin implementation and JoinMarket. OFAC sanctioned Blender.io in 2022 and Tornado Cash the same year; Tornado Cash was removed from the SDN list in March 2025, but many exchanges still screen its interactions. Beyond the sanctioned protocols, non-sanctioned mixers still create severe compliance flags at regulated exchanges because they are consistently associated with illicit fund laundering. The exposure problem is not limited to users who intentionally used mixers. DeFi yield strategies, liquidity pool participation, and peer-to-peer ETH trades all create paths through which mixer-tainted funds can reach ordinary wallets without the recipient's knowledge. When you deposit to an exchange, their blockchain analytics system traces the full counterparty graph of your wallet. Any address in that graph that transacted with a mixer — directly or indirectly — creates a flag in their system. How severely that flag is treated depends on the hop distance, the transaction volume, and the specific mixer involved. Understanding your mixer exposure before depositing is the starting point for managing this risk.

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How Plastron handles mixer exposure check

Multi-Protocol Mixer Detection

Plastron's known-address database includes the Tornado Cash contracts OFAC designated in 2022 plus other labelled mixer protocols such as Railgun. We flag direct interaction with mixer contracts (a deposit or a withdrawal scores Critical) and indirect exposure through counterparties two or three hops away, weighted by hop distance and the share of value traced. A small transfer that your wallet only received from a mixer and never sent back, arriving long after the wallet was first used, is capped at Medium as likely dusting, and at Low when the total is under $1.

Severity Classification by Protocol

Not all mixer exposure is equal. Tornado Cash, OFAC-sanctioned from 2022 until its removal from the SDN list in March 2025, still draws the strictest treatment at many exchanges; other mixers such as Wasabi Wallet CoinJoin are typically treated as high risk. Plastron reports mixer exposure in its own category and names the protocol behind it.

Actionable Exposure Report

Your report shows the specific counterparty addresses linked to mixer exposure, the type of mixer involved, the volume of interaction, and when it last occurred. This gives you the information needed to assess whether the exposure is material and, if you proceed with a deposit to a regulated exchange, how to respond to documentation requests.

What the scan looks for

Mixer

Tornado Cash, Railgun and other labelled mixing protocols. Interaction with these services is a major red flag.

Sanctions

OFAC SDN-listed addresses. Direct or indirect exposure flags your wallet instantly.

$7B+

Laundered through Tornado Cash per Chainalysis

Source: Chainalysis 2024 Crypto Crime Report

Crypto mixer services OFAC has sanctioned (Blender.io, and Tornado Cash until 2025)

Source: US Treasury OFAC

25%

Mixer exposure weight in Plastron's composite risk scoring

Source: Plastron methodology

The numbers behind the check

Measured from Plastron’s own screening corpus, rebuilt on every deploy.

34

mixer contracts and routers labelled

every scan is matched against them

8,571

labelled addresses screened

matched on every scan, refreshed at each deploy

1,047

OFAC SDN crypto addresses

across 14 chains

Page last updated 8 October 2026

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Tornado Cash Router (v2)

0x722122df12d4e14e13ac3b6895a86e84145b6967

Tornado Cash mixing contract (OFAC-sanctioned 2022, removed from the SDN list March 2025). Direct interaction scores Critical on the mixer category. Wallets that transacted with this address face immediate freezes at Coinbase, Kraken, and Binance.

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Mixer exposure check: common questions

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