South Korea fines Coinone 5.2 billion won for AML violations and imposes business suspension

This fine underscores the increasing scrutiny on cryptocurrency exchanges, which could lead to tighter regulations globally.

• On April 13, 2026, South Korea's Financial Intelligence Unit (FIU) fined Coinone 5.2 billion won ($3.5 million) for anti-money laundering (AML) violations.
• The FIU found that Coinone failed to verify approximately 70,000 customer identities and processed over 10,000 transactions with unregistered foreign platforms.
• A three-month partial suspension of Coinone's operations will begin on April 29, 2026, restricting new user deposits and withdrawals.

• Increased regulatory oversight: Following the 2024 Virtual Asset User Protection Act, South Korea has intensified its regulation of virtual asset service providers to combat money laundering.
• Recent high-profile fines: Coinone's fine follows a $24 million penalty imposed on Bithumb in March 2026 for similar AML failures, indicating a trend of strict enforcement.
• Real-time compliance requirements: South Korean regulators now mandate real-time asset reconciliations every five minutes, reflecting a push for enhanced compliance measures across the sector.

The FIU's investigation into Coinone revealed systemic deficiencies in its anti-money laundering practices. The exchange failed to verify the identities of approximately 70,000 customers, which is a significant lapse in compliance. This lack of due diligence allowed Coinone to process 10,113 transactions with 16 unregistered overseas platforms, despite prior warnings from regulators. Additionally, the exchange bypassed necessary checks on 40,000 accounts and permitted 30,000 unverified trades, raising serious concerns about its operational integrity.

The regulatory action taken against Coinone is part of a broader trend in South Korea, where authorities are tightening their grip on the cryptocurrency market. The 2024 Virtual Asset User Protection Act was a pivotal moment, establishing a framework for oversight and compliance that has since been rigorously enforced. The FIU's decision to impose a fine and a partial suspension on Coinone reflects a zero-tolerance approach to AML violations, aiming to protect consumers and maintain the integrity of the financial system.

Coinone's CEO, Cha Myung-hoon, has acknowledged the FIU's findings and expressed a commitment to remediate compliance issues. The exchange has been granted 10 days to contest the findings before the suspension takes effect. This situation highlights the potential for regulatory actions to disrupt operations and impact user trust in cryptocurrency exchanges.

While Coinone's existing users will not be affected during the suspension, the restrictions on new user deposits and withdrawals could lead to liquidity concerns for the exchange. The FIU's scrutiny is not limited to Coinone; other exchanges like Korbit and Gopax are also under investigation, indicating that the regulatory landscape is shifting rapidly.

As the cryptocurrency market continues to evolve, the implications of this regulatory action extend beyond South Korea. Global exchanges may face similar scrutiny, prompting them to enhance their compliance measures to avoid penalties. The Coinone case serves as a cautionary tale for cryptocurrency platforms worldwide, emphasizing the importance of robust AML practices in an increasingly regulated environment.

• Cryptocurrency users: Those using Coinone may experience disruptions in their trading activities due to the suspension.
• Investors in South Korean exchanges: Increased regulatory scrutiny may lead to market volatility and liquidity concerns.
• Cryptocurrency exchanges globally: Other platforms may need to reassess their compliance measures to avoid similar penalties.

• Regulatory responses: Monitor how other exchanges respond to increased scrutiny and whether they implement stricter compliance measures.
• Market reactions: Watch for potential shifts in trading volumes and user trust in South Korean exchanges following the Coinone suspension.
• Legal challenges: Keep an eye on Coinone's potential administrative lawsuit against the FIU's findings and how it may influence future regulatory actions.