Details of the Bribery Investigation

South Korean authorities have escalated their probe into Bithumb, naming CEO Lee Jae-won as a suspect in a bribery case linked to preferential hiring. The Seoul Metropolitan Police Agency’s Public Crime Investigation Unit conducted searches at Bithumb’s headquarters, with the most recent operation occurring on June 8, 2026.

According to police findings and statements from a former aide to independent lawmaker Kim Byung-ki, the lawmaker met with CEO Lee in November 2024 at a restaurant in Seoul’s Mapo district. During the meeting, Kim reportedly requested employment for his second son. The son was hired by Bithumb in January 2025 and worked there for approximately six months.

Investigators are also examining the hiring of one of Kim’s former aides, who joined Bithumb in September of the previous year. Police suspect these employment decisions were connected to Kim’s legislative activities while serving on the National Assembly’s Political Affairs Committee, which oversees financial matters.

Political Context and Alleged Quid Pro Quo

Authorities believe lawmaker Kim used his position to highlight alleged monopoly practices at Dunamu, Bithumb’s main rival, as part of the arrangement. Former aides reported that Kim instructed his team to address Dunamu’s market dominance, describing it as a significant problem that required action.

Bithumb and Upbit together control the vast majority of South Korea’s crypto trading volume, making any regulatory or political intervention in this sector highly impactful. The case has drawn attention to potential conflicts of interest between lawmakers and major industry players.

Bithumb’s Ongoing Legal and Regulatory Challenges

This bribery investigation adds to a series of difficulties facing Bithumb in 2026. Earlier in the year, the exchange experienced a major operational error during a promotional event, where users were accidentally credited with a large amount of Bitcoin instead of Korean won. The incident prompted stricter regulatory requirements across the industry, including more frequent audits and improved internal controls.

In March 2026, South Korea’s Financial Intelligence Unit imposed a substantial fine and attempted to suspend part of Bithumb’s operations due to anti-money laundering and customer verification failures. Bithumb successfully obtained a temporary court block on the suspension while challenging the decision.

Previous leadership at Bithumb has also faced criminal charges, including bribery related to token listings. The current case highlights persistent scrutiny of governance and compliance practices at major South Korean exchanges.

Broader Implications for South Korea’s Crypto Sector

The scandal comes amid heightened regulatory focus on crypto in South Korea. With dominant players like Bithumb and Upbit handling most domestic trading, issues at one exchange can affect overall market confidence and invite further oversight.

Industry observers note that gaps in current regulations have allowed executives to remain in position despite compliance problems, though lawmakers are working to close these loopholes. The bribery probe underscores concerns about political influence in the fast-growing digital asset industry.

As investigations continue, Bithumb’s board had considered reappointing CEO Lee for another term, but the latest developments may complicate those plans. Police are reviewing seized materials and plan further questioning of involved parties.

The outcome of the current investigation could lead to additional charges and influence future regulatory approaches to crypto exchanges in South Korea. Market participants will be watching closely for any impact on operations and investor sentiment.