South Korean exchange Bithumb said on October 28, 2026 that its internal mobile system was hacked and that personal data was leaked. If you hold a Bithumb account, the incident concerns you directly because it involves personal data.
What Bithumb disclosed
The attack targeted an internal mobile system of the company. Bithumb confirmed that personal data was leaked as a result of the breach.
The disclosure does not specify how many people were affected, which data types were compromised, or exactly when the intrusion took place.
What is still unknown
- No figure has been published for the number of affected users
- No breakdown of which personal data categories were leaked
- The disclosure does not mention customer funds