In the latest cybersecurity news, Oriental Diamond — a company operating in the JP — has fallen victim to a ransomware attack conducted by the group thegentlemen. This data breach, discovered on 2026-05-12T19:28:58.254189+00:00, underscores the increasing need for proactive cybersecurity defenses as we continue through 2025.
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Incident Report
| Attribute | Information |
|---|---|
| Target Organization | Oriental Diamond |
| Threat Group | thegentlemen |
| Summary | orientaldiamond.jp Oriental Diamond Inc. is a pioneering Japanese diamond enterprise established in 1966, specializing in the import, design, and manufacturing of fine diamond jewelry and loose stones. As the first company in Japan to earn the prestigious Sightholder qualification, they combine global sourcing with in-house craftsmanship to deliver conflict-free diamonds and elegant collections like Hoshi no Suna. With a heritage of excellence and a diversified portfolio spanning jewelry, bridal, and traditional kimono wholesale, they continue to innovate as a trusted market leader in Tokyo’s luxury sector |
| Date of Breach | 2026-05-12T17:09:00+00:00 |
| Discovery Date | 2026-05-12T19:28:58.254189+00:00 |
| Region | JP |
| Target Domain | orientaldiamond.jp |
| Business Sector | Manufacturing |
Don’t wait for a breach to take action — stay informed and take control of your cybersecurity posture today.
You can also check if your organization’s data has been exposed using our free Data Breach Checker.
Disclaimer: HookPhish does not engage in the exfiltration, downloading, taking, hosting, viewing, reposting, or disclosure of any stolen information. All breach data reported here is sourced from publicly available threat intelligence feeds for awareness purposes only.
