UPDATE: Bithumb confirms personal data compromised in system intrusion
CIE News ·
Update to UPDATE: Bithumb clarifies customer crypto safe after internal mobile system breach
Based on reporting by Bitcoin.com News; not yet independently confirmed.
Bithumb confirmed personal data was compromised in an internal groupware breach, while state agencies opened investigations into a wider wave of attacks across South Korean financial institutions.
A cyber intrusion into Bithumb's internal mobile groupware resulted in compromised personal data, following an earlier report that the extent of the exposure was under analysis. The exchange confirmed that hot wallets were not drained and customer token balances remain secure after the intrusion was first detected late on October 27, 2026.
The incident emerged as part of a wider wave of cyberattacks targeting South Korean financial entities, including Daishin Securities and Mirae Asset Global Investments. According to Bitcoin.com News, Daishin Securities reported that personal and credit details of 38,490 clients were exposed.
South Korean authorities, including the Financial Supervisory Service, the Cheong Wa Dae National Security Office, and cyber police, have opened investigations into the incidents. According to mt.co.kr, the National Security Office convened an emergency meeting with regulatory agencies to coordinate responses and limit secondary fallout across the financial and virtual asset sectors.
Key facts
- Personal data compromised
- Hot-wallet funds secure
- FSS and cyber police probe breach
- Hits Daishin and Mirae Asset too
Read the original at Bitcoin.com News