Tornado Cash exposure means your wallet sent funds to or received them from the mixer, directly or indirectly; Plastron flags both direct and one-hop Tornado Cash exposure free across seven EVM chains.
Tornado Cash Exposure Check
OFAC sanctioned Tornado Cash in August 2022 and removed it from the SDN list in March 2025, but many exchanges still screen TC interaction history.
In August 2022, the US Office of Foreign Assets Control designated Tornado Cash — a set of immutable smart contracts on Ethereum — as a sanctioned entity and added dozens of associated addresses to the SDN list. This was the first time OFAC sanctioned open-source software rather than a person or organization, and it created immediate compliance implications for every wallet that had ever deposited to or withdrawn from Tornado Cash contracts. Exchanges including Coinbase, Kraken, and Binance immediately froze accounts associated with TC interactions. The challenge for ordinary users is that Tornado Cash was widely used for legitimate privacy reasons before the sanction — by people protecting their financial privacy, by DAOs managing treasury, and by protocol developers testing anonymity features. Many of these users had no idea that their TC interactions would later become a compliance liability. Beyond direct users, the problem extends to anyone who received ETH that passed through TC before reaching them: DeFi liquidity pools, yield aggregators, and anonymous P2P transactions all became potential vectors for second-hand TC exposure. Treasury removed Tornado Cash from the SDN list in March 2025, but the on-chain record stays: any wallet that deposited to, withdrew from, or received funds from TC-linked addresses carries exposure that is visible to every exchange running blockchain analytics. Knowing your exposure level before depositing to a regulated exchange is essential.
Tornado Cash Exposure Check, and what a scan shows
Tornado Cash Direct Interaction Detection
Plastron's known-address database includes all Tornado Cash contract addresses OFAC designated in 2022. If your wallet directly deposited to or withdrew from any TC contract, we flag it immediately with a Critical severity rating under the mixer category. Direct TC interaction is the highest-risk exposure type for exchange compliance purposes.
Indirect TC Exposure Tracing
Beyond direct interaction, we trace your counterparty graph to identify wallets in your transaction history that themselves used Tornado Cash. If you received ETH from a wallet that withdrew from TC — even one hop removed — we flag that counterparty as mixer-exposed. This second-hand exposure is less severe than direct interaction but still creates compliance risk at major exchanges.
Risk Score and OFAC Flags
Your report shows a mixer exposure score and, separately, any OFAC sanctions flags. Depositing to or withdrawing from TC scores in the Critical range. Funds that reach you through other wallets, two or three hops from TC, score by hop distance and the share of value traced back; a small transfer you only received from TC, long after your wallet was first used, is capped at Medium, or at Low when it adds up to less than $1. Both signals are reported with specific counterparty addresses and transaction details so you understand exactly what an exchange will see.
What the scan looks for
The numbers behind the check
Measured from Plastron’s own screening corpus, rebuilt on every deploy.
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