South Korean Regulators Silent on Crypto Regulation Inquiry

South Korean financial regulators have implemented a series of strict new mandates for domestic cryptocurrency exchanges to combat fraud and address systemic weaknesses in internal asset management. These measures, announced by the Financial Services Commission (FSC) and the Financial Supervisory Service, focus on curbing voice phishing scams and ensuring the accuracy of exchange ledgers.

On April 8, 2026, authorities ordered all domestic exchanges to adopt a unified withdrawal delay system. This initiative is designed to disrupt voice phishing scams that typically rely on the rapid conversion of cash into cryptocurrency and the immediate transfer of funds out of an account.

Unified Withdrawal Delays to Combat Phishing

The new rules remove the previous discretion exchanges had regarding holding periods for withdrawals. Previously, platforms established their own exceptions to maintain high trading speeds, but regulators found that fraud groups were coaching victims to exploit these specific rules to bypass security checks.

Under the mandated system, exchanges must apply uniform criteria when reviewing exceptions for withdrawals. These criteria are based on transaction patterns, account history and sudden changes in user behavior. Regulators expect that fewer than 1% of users will qualify for instant withdrawals.

By introducing a delay, regulators aim to provide victims with time to reconsider the transaction or allow security alerts to trigger before the funds leave the platform. Exchanges are now required to strengthen identity checks and more closely monitor the flow of funds.

Five-Minute Asset Reconciliation Mandate

In a separate but related push for tighter internal controls, the FSC announced on April 7, 2026, that all crypto exchanges must reconcile their internal ledgers with actual asset holdings every five minutes. This directive follows an emergency inspection triggered by a payout incident at the Bithumb exchange.

In February 2026, Bithumb mistakenly distributed 620,000 Bitcoin (BTC) to 249 users during a promotional event. While the exchange recovered 99.7% of the funds on the same day, the remaining 0.3%—amounting to 1,788 BTC that had been sold—had to be covered using company reserves.

The subsequent inspection revealed that three of the five largest exchanges in South Korea were only reconciling balances once every 24 hours. Regulators found that this slow cycle limited the ability of exchanges to respond quickly to discrepancies and that existing systems for halting trades during major mismatches were insufficient.

To remedy these vulnerabilities, exchanges must now implement automated ledger-to-wallet reconciliation systems operating on the five-minute cycle and establish clear criteria for triggering automatic transaction halts when significant discrepancies occur.

Legislative Gridlock and Ownership Caps

These operational mandates arrive amid a broader period of regulatory uncertainty. Representative Kim Sang-hoon of the People Power Party has questioned the government’s commitment to the digital asset market, citing delays in the comprehensive digital asset framework that the FSC had initially targeted for completion in the first quarter of 2026.

Reports suggest that legislative progress has been hindered by a controversial proposal to restrict the post-facto stakes of major shareholders in cryptocurrency exchanges. This issue has emerged alongside discussions regarding which entities should be permitted to issue won-denominated stablecoins.

Despite the legislative delays, some specific rules have already been enforced. As of March 16, 2026, South Korea has implemented a 20 percent ownership cap under the Digital Asset Basic Act to improve Anti-Money Laundering (AML) transparency for major platforms such as Upbit.

The combination of these measures—unified withdrawal delays, frequent asset verification, and ownership caps—signals a shift toward a highly standardized and monitored environment for cryptocurrency operations within South Korea.