Ransomware Group: D4RK4RMY

VICTIM NAME: MIZUHA FINANCIAL GROUP

NOTE: No files or stolen information are [exfiltrated/downloaded/taken/hosted/seen/reposted/disclosed] by RedPacket Security. Any legal issues relating to the content of the files should be directed at the attackers directly, not RedPacket Security. This blog is simply posting an editorial news post informing that a company has fallen victim to a ransomware attack. RedPacket Security is in no way affiliated or aligned with any ransomware threat actors or groups and will not host infringing content. The information on this page is fully automated and redacted whilst being scraped directly from the D4RK4RMY Onion Dark Web Tor Blog page.

AI Generated Summary of the Ransomware Leak Page

The leak page pertains to a ransomware incident involving Mizuho Financial Group, a major entity in the financial services sector based in Japan. The attack was committed on August 7, 2025, and the breach appears to have exposed various potentially sensitive corporate data. Mizuho Financial Group was formed through the merger of several prominent Japanese banks in 2002, and has since established a broad presence across Asia and globally. The page does not specify the exact type or volume of data leaked, but the presence of a download link suggests that internal files or documents may have been compromised. The victim’s industry focus on banking and finance indicates that the breach could have significant implications if sensitive financial or corporate data was accessed. The page includes a screenshot placeholder but no explicit images or detailed leaks are available publicly. Overall, this incident emphasizes the ongoing threat faced by major financial institutions from ransomware attacks.

The ransomware leak page provides limited technical details but highlights a serious security compromise affecting a prominent Japanese financial organization. There are no indications of personally identifiable information or customer data being leaked directly, though the exposure of internal corporate details remains a concern for operational security. The attack underscores the importance for financial institutions to strengthen their cybersecurity measures against emerging threats. While the specific data leaked is not disclosed, the presence of download options and the security breach itself demonstrate the potential risk of sensitive financial information being compromised or misused. This case exemplifies the growing cybersecurity challenges faced by the banking sector worldwide in a rapidly evolving threat landscape.