Bithumb Says Hackers Accessed Internal System, Leaking Personal Data

In brief

• South Korean crypto exchange Bithumb said an outside party accessed its internal mobile groupware system and leaked personal information.
• The exchange is investigating whether customer data was among the information exposed, though an industry source told Yonhap some had leaked.
• Brokerage Daishin Securities and asset manager Mirae Asset Global Investments also reported breaches, as authorities inspect the incidents.

Bithumb, South Korea's second-largest crypto exchange, said an unauthorized outside party had accessed its internal mobile groupware system, resulting in a leak of personal information, according to Yonhap News Agency.

The exchange is investigating whether customer data was compromised, Reuters reported, citing Yonhap. An industry source told Yonhap that some personal information belonging to Bithumb customers had been leaked.

Bithumb was one of three South Korean financial firms to report data breaches on Wednesday, local time. Brokerage Daishin Securities said the personal information of 38,490 customers, including names, email addresses and mobile phone numbers, was leaked after it detected signs of unauthorized access last week. It said it would compensate customers for any resulting damage in accordance with the law.