Bithumb and South Korean financial firms hit by cyber intrusions
South Korean cryptocurrency exchange Bithumb, along with Daishin Securities and Mirae Asset Global Investments, has reported security breaches involving personal data.
South Korea's second-largest cryptocurrency exchange, Bithumb, confirmed a personal data leak after detecting unauthorized external access to its internal mobile groupware system, according to reports by Yonhap News Agency. The exchange discovered the intrusion on Oct. 27 and is actively investigating whether customer information was compromised. The affected platform is an in-house mobile system used by employees for work and internal communications.[1][2][4][6]
The incident coincides with disclosures from two other South Korean financial institutions facing cyber intrusions. Brokerage firm Daishin Securities confirmed that the personal and credit data of 38,490 customers was leaked, while asset manager Mirae Asset Global Investments reported a hacking incident that remains under assessment.[2][3][4][5][6]
South Korea's Financial Supervisory Service is investigating the security breaches across the financial sector alongside relevant authorities.[4][6]
Key facts
- Bithumb confirmed an external cyberattack breached its internal mobile groupware system, which is used by staff for work and communication.
- Bithumb detected the unauthorized access on Oct. 27 and is assessing whether customer information was leaked.
- Daishin Securities disclosed a data breach exposing personal and credit details of 38,490 customers.
- Mirae Asset Global Investments confirmed a hacking incident that it is currently evaluating.
- South Korea's Financial Supervisory Service is investigating the breaches across the financial institutions.
Sources · 6 sources
- CT
Coin TelegraphArticle ·
Bithumb discloses data leak after internal system breach: Report The breach impacted its in-house mobile system, used by employees for work and information sharing.
Open source - TB
The Block@TheBlockCoPost on X ·
NEW: South Korean crypto exchange Bithumb confirmed a personal information leak after detecting unauthorized external access to its internal mobile groupware system on Tuesday, according to local news reports. This follows similar recent incidents at Korean financial institutions — Daishin Securities saw the personal data of 38,490 customers leaked, while Mirae Asset reported a security breach it is still assessing.
Open source - CO
Cointelegraph@CointelegraphPost on X ·
🇰🇷 NOW: South Korea’s Bithumb, Daishin Securities and Mirae Asset Global Investments have all reported customer data breaches, with Bithumb’s linked to an external cyberattack, per Yonhap. https://t.co/XGCGE5AB8r
Open source - WB
Wu Blockchain@WuBlockchainPost on X ·
South Korea’s Second-Largest Crypto Exchange Bithumb Confirms Security Breach According to Yonhap News Agency, South Korea’s second-largest cryptocurrency exchange, Bithumb, confirmed that an unauthorized external party accessed its internal mobile groupware system, resulting in a personal data leak. The exchange discovered the incident on October 27 and is investigating whether customer information was compromised. Two other South Korean financial institutions, Mirae Asset Global Investments and Daishin Securities, were also confirmed to have suffered cyber intrusions. Daishin Securities disclosed that the personal and credit information of 38,490 customers had been leaked. South Korea’s Financial Supervisory Service (FSS) is investigating the incidents.
Open source - TS
The Straits Times@straits_timesPost on X ·
Three South Korean financial firms including Bithumb report data breaches: Report https://t.co/yxQiB4gwkd
Open source - SO
SolanaFloor@SolanaFloorPost on X ·
🇰🇷NEWS: South Korea’s second-largest crypto exchange, @BithumbOfficial, reports a security breach after unauthorized access to its internal mobile groupware system. Daishin Securities also confirmed a data leak affecting 38,490 customers, while authorities investigate breaches across the financial sector.
Open source