Bithumb has blocked transfers involving three exchanges sanctioned by OFAC, according to the article title. The fetched article body contains only page styling code and no additional substantive details, so no further specifics about the sanctioned exchanges or the timing of the block are available from the provided text.
This item was indexed from its published source and tied to the entity records it names. The Counterparty reports what the market says and who it says it about; it does not rewrite the original report. Read the source for the full account.