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Home Incidents

Mizuho and Resona Banks Hit by DDoS Attacks

January 2, 2025
Reading Time: 2 mins read
in Incidents
Mizuho and Resona Banks Hit by DDoS Attacks

Mizuho Bank and Resona Bank in Japan recently experienced disruptions likely caused by Distributed Denial of Service (DDoS) attacks, which flooded their systems with excessive traffic. Mizuho reported access issues for both individual and corporate customers on Tuesday, while Resona faced similar problems over the weekend, impacting its retail banking services. Both banks have since restored service, although instability continued at Resona Bank throughout Monday afternoon.

Investigations are underway, with both banks working with cybersecurity experts to identify the source and nature of the attack. No customer data leaks have been confirmed at this time, but the disruptions have raised concerns about the rising frequency of such cyber threats. These incidents come after similar attacks on MUFG Bank and Japan Airlines the previous week, highlighting an emerging pattern of cyberattacks on major Japanese institutions.

The impact of these DDoS attacks underscores the increasing vulnerability of financial institutions in the digital age. As more banking services move online, cybercriminals have ramped up their efforts to overwhelm banking systems, causing service disruptions and impacting customer access. While there has been no confirmation of data breaches, the continued instability in the affected systems raises questions about the robustness of cybersecurity measures in place at these institutions.

Both Mizuho and Resona have assured customers that their sensitive data remains secure, and they are taking necessary actions to prevent future incidents. With cybersecurity experts at work, the banks are committed to stabilizing their services and improving their defenses against future DDoS attacks. As the financial industry grapples with growing cyber threats, these incidents highlight the importance of strengthening digital infrastructure to ensure the safety and reliability of online banking services.

Reference:

  • Mizuho and Resona Banks Hit With DDoS Attacks Disrupting Online Services
Tags: cyber incidentsCyber Incidents 2025CyberattackDDoSFinancialJanuary 2025JapanMizuho BankMUFG BankResona Bank
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