Science & Tech · Cybersecurity · 2 hrs ago
Bithumb Investigates Personal Data Leak After System Breach
South Korean cryptocurrency exchange Bithumb reported a personal data leak after an external attacker gained unauthorized access to its internal mobile groupware system.
The suspected breach happened on October 27, and the company said it learned of it that day.
Bithumb is still checking what information was exposed, including whether member details were affected.
It notified South Korea’s internet security agency and Personal Information Protection Commission on the day it discovered the incident.
The breach is the third recent incident reported in South Korea’s crypto sector, after incidents involving GOPAX and Prabang.
The extent of the leak remains unclear, and Bithumb’s investigation is ongoing.
Bithumb said personal information was exposed after an unauthorized person accessed its internal mobile groupware system.
The cryptocurrency exchange said it is investigating the extent of the leak, including whether member information was affected.
Bithumb notified South Korea’s internet security agency and privacy regulator about the incident.
The breach was believed to have occurred on October 27, according to Yonhap.
- Who
- Bithumb, a cryptocurrency exchange, was affected.
- What
- An unauthorized person accessed its internal mobile groupware system, exposing personal information.
- When
- The breach was believed to have occurred on October 27, 2026.
- Where
- Bithumb’s internal mobile groupware system in South Korea.
- Why
- Not stated
This story does not have two clearly opposing sides.
The breach was believed to have occurred, and Bithumb became aware of the data leak.
Bithumb notified KISA and the Personal Information Protection Commission about the incident.
Bithumb publicly said it was investigating the scope of the leak.
- Company
- Bithumb
- Affected system
- Internal mobile groupware system
- Incident
- Personal information was exposed
- Possible data involved
- Member information; scope under investigation
- Authorities notified
- KISA and the Personal Information Protection Commission
What people are saying
We confirmed that personal information was leaked after abnormal access by an unauthorized external party to our internal mobile groupware system.
We have reported it to the Korea Internet & Security Agency (KISA) and the Personal Information Protection Commission.
We are analyzing the exact scope of the leak, including the possibility that member information was included.