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Over 1 Million Hacking Attempts Target South Korean Banks Amid AI-Driven Attacks

Over 1 Million Hacking Attempts Target South Korean Banks Amid AI-Driven Attacks

First seen 11 Oct 2026, 05:33 UTC • •
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ThreatCluster AI
ThreatCluster •October 11, 2026 at 17:31 UTC
  • •Over 1 million hacking attempts recorded against South Korean banks in 2026.
  • •Major banks reported data breaches, affecting thousands of customers' personal information.
  • •Banks are significantly increasing cybersecurity budgets and hiring specialists to combat AI-driven threats.

In 2026, South Korea's financial sector faced over 1 million hacking attempts, primarily targeting the Bank of Korea and state-run banks. The total reached 1,024,478 by September, surpassing the previous year's total. Major banks like Shinhan, KB Kookmin, and Hana Bank reported data breaches affecting thousands of customers, with hackers utilizing advanced AI tools. Following these incidents, banks are ramping up their cybersecurity budgets and hiring more specialists to combat the rising threat. Despite the high number of attempts, no successful breaches resulting in system compromise have been reported. The Financial Security Institute had warned about AI-driven attacks just weeks prior to the incidents, highlighting the urgency for improved defenses. Denial-of-service attacks were the most common method, accounting for 45.6% of attempts.

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Timeline

2026-10-01
Shinhan Bank reports data breach
Shinhan Bank disclosed that personal information of 25,000 customers was leaked due to a hacking incident.
Koreatimes.Co.Kr
2026-10-11
Over 1 million hacking attempts reported
Hacking attempts against the Bank of Korea and state lenders exceeded 1 million, with no breaches confirmed.
Finance.Biggo
2026-10-11
Banks plan to increase cybersecurity budgets
In response to recent breaches, major banks announced plans to boost cybersecurity spending and hire more personnel.
Koreajoongangdaily

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Common questions

What specific data was leaked?
Shinhan Bank reported that names, phone numbers, annual incomes, and loan limits of 25,000 customers were exposed.
What measures are banks taking in response?
Banks are increasing their cybersecurity budgets and hiring more specialists to enhance defenses against AI-driven attacks.
Have there been any successful breaches?
No successful breaches resulting in system compromise have been reported despite the high number of hacking attempts.