Audit crypto transactions for OFAC

Audit OFAC coverage by reviewing screening logs, testing with known sanctioned wallets, and checking every payment channel.

TL;DR

TL;DR: To audit crypto transactions for OFAC, review your screening logs, test against known sanctioned wallets, and verify that every payment channel performs a check before authorizing.

Review the logs

Start with evidence. Confirm that every transaction has a corresponding screen result showing the wallet and name were checked against the SDN List. Gaps in the log are gaps in your compliance posture, and OFAC applies strict liability, so intent is not required. A missing record is treated as a missing check.

Test with known wallets

Run controlled tests using known listed crypto wallets to confirm the system actually blocks. A false allow on a designated address is the highest risk finding. Also test names, not just addresses, and apply the 50 Percent Rule to majority owned entities so ownership-based blocks are verified too.

Verify channel coverage

• On-chain transfers.
• Deposits and withdrawals.
• Agent or API initiated payments.

Any channel that moves value without a screen is a finding. Document each gap, fix it, and rerun the test to confirm the block works. An audit is not complete until the fix is re-verified, not just noted.

What a good audit produces

A complete audit ends with a list of findings, a fix for each gap, and a re-test showing the block now works. Save the evidence: the screen logs, the test transactions, and the re-test results. That package is what demonstrates a working compliance program rather than a set of intentions.