That letter no even single out bitcoin, na cryptocurrency as a whole them mention. All of us know say CBN no go fit succeed in banning cryptocurrency but the thing be say they made the attempt. Abi wetin prohibition mean again if not preventing someone from doing it and at the same time they issued warning to banks to close down any account weh them catch transacting in it. Na just one year weh this thing happen o why we deh try forget so soon. If na only restrictions, CBN no go mandate banks to close people accounts na, instead na banks weh allow cryptocurrency trades CBN for sanction.