The UK's Financial Conduct Authority (FCA) is investigating TikTok for potentially running an unlicensed crypto exchange.The FCA has raised concerns that TikTok Coins could be used for money laundering activities and to evade regulations.A compliance consultant sent a letter to the FCA, alleging that TikTok acts as an unregistered crypto exchange.If the FCA intervenes, TikTok's financial operations, including its virtual currency system, could be audited and subjected to regulatory laws.