South Korea’s five largest won-based crypto exchanges now compare actual holdings with internal ledger balances at intervals of under five minutes. The faster reconciliation followed Bithumb’s mistaken Bitcoin payout in February, when three of the five exchanges performed the checks only once a day. Financial authorities subsequently mandated real-time balance reconciliation, requiring an always-on framework. Financial News reported the change on Oct. 2, citing data submitted by the Financial Supervisory Service, South Korea’s financial regulator, to the office of Democratic Party lawmaker Kang Jun-hyun.