I think this statement is wrong because the reason why the Federal Government clamped down on some centralized exchanges like Binance was as a result of regulations issues and also an accusation that they were the cause of Naira depreciation when the CEX's naira exchange rates was going higher as at that time, and that they also failed to register with First Inland Revenue Service for taxation so those where literally the charges of the Federal Government and not that cryptocurrency or bitcoin was aiding terrorism. I haven't even come across any statement by the Federal Government that bitcoin was used to aid terrorism but i think they only criticized bitcoin and called it a scam.