South Korea's financial sector has been struck by a fresh wave of cyberattacks, exposing vulnerabilities at brokerages Daishin Securities and Mirae Asset Global Investments, as well as crypto exchange Bithumb. The latest breaches follow a prior series of attacks in September that security researchers previously linked to a suspected China-based hacker utilizing an AI penetration testing tool named Artex.
The incident at Daishin exposed the personal information of 38,490 customers, including names, email addresses, and mobile phone numbers, prompting the firm to cooperate with authorities and offer statutory compensation for losses. Meanwhile, Mirae and Bithumb reported separate cybersecurity incidents on Wednesday, although neither company has confirmed whether customer data was compromised during the breaches.
In response to the growing wave of security failures impacting financial firms and government agencies, South Korea's Financial Services Commission called for stronger cybersecurity measures and plans to audit dozens of private sector IT systems. This regional trend also affected Japan, which recently reported an incident involving GMO Internet, highlighting widespread cybersecurity challenges across Asian financial institutions.
This wave of cyberattacks matters because it demonstrates the escalating threat of sophisticated hacking techniques against critical financial infrastructure across Asia.