An OFAC check for Bitcoin is an exact digital-currency match against current SDN data. The decisive evidence is a full BTC address listed with the correct asset field and designated party.
Read the designation entry, not a screenshot of a ticker
SDN records name the sanctioned person or entity, the program code, and the published identifiers. A similar prefix or a truncated explorer link does not establish a hit. Compare the complete Base58 or bech32 string mechanically.
Lazarus and ransomware BTC tags are direct listings when published
OFAC has published Bitcoin addresses tied to Lazarus Group activity and to ransomware operators. A wallet printed in those records is a direct match. Transfers touching that wallet create exposure evidence; they do not automatically place every counterparty on the SDN list.
Keep ownership language precise
Exchange deposit addresses, service omnibus wallets, and self-custody coins raise different questions even when the identifier matches. Copy the program tag, publication date, and network field into the case note so a later reviewer can reproduce the lookup.
Check the source and record the date
Search the address above, then confirm any hit in the official OFAC SDN data. Data reference date: 2026-06-17.
What to do with a suspected match
Pause the transfer and send the exact record to a qualified sanctions professional under your jurisdiction's rules. This information is not legal or financial advice.