Shinhan Bank hit by cyberattack
Incident
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A confirmed data breach at Shinhan Bank and related cyber incidents at KB Kookmin Bank and Hana Bank exposed risk across South Korea's banking sector. Authorities launched on-site investigations and coordinated incident information with KISA after receiving reports. Local reporting said Shinhan may have leaked details on 25,000 customers, while Kookmin may have exposed credit card information for 119,000 clients. The response now centers on containment, customer protection, and tighter checks on externally accessible systems.
Timeline
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05.10.2026 17:22 2 articles · 1h ago
FSC confirms Shinhan Bank breach as cyberattacks hit South Korean banks
Initial DisclosureSouth Korea's Financial Services Commission held an emergency meeting after cyberattacks targeted financial institutions and confirmed a data breach at Shinhan Bank, with related incidents also affecting Kookmin Bank and Hana Bank. Authorities launched on-site investigations, shared actionable information with KISA, and told financial companies to inspect externally accessible IT systems, reduce unnecessary information exposure, and check authentication and access controls; reporting also described leaked details for 25,000 Shinhan customers and credit card information for 119,000 Kookmin clients, while a server used in the attacks showed an HTML page title containing a Chinese-language string associated with ARTEX AI that was not confirmed as the cause.
Show sources
- South Korea probes bank breaches amid suspected AI-powered attacks — www.bleepingcomputer.com — 05.10.2026 17:22
- South Korea probes bank breaches amid suspected AI-powered attacks — www.bleepingcomputer.com — 05.10.2026 17:22