Japan
JPRansomware victim intelligence profile ยท Ranked #11 globally ยท Updated: May 23, 2026
Ransomware Threat Profile: Japan
Japan ranks #11 globally for ransomware attacks, with 223 confirmed victims in this database โ representing 1.2% of the worldwide total. The most active ransomware groups targeting Japan include Qilin, Clop, Ransomhub.
The most frequently targeted industries in Japan are Manufacturing, Technology, Business Services. The healthcare sector is particularly vulnerable because attacks on hospitals and medical providers can create life-threatening situations, increasing pressure to pay ransoms quickly.
Japan's attack volume reflects broader trends in ransomware targeting: the volume of attacks reflects the country's integration into the global economy and the proliferation of ransomware operations that target organisations of all sizes worldwide.
Organisations in Japan should consider the active threat groups documented here when assessing their cybersecurity posture, implementing detection rules, and prioritising incident response planning.
Recent Victims in Japan (20 cached of 223 total)
| # | Organization | Group | Sector | Date |
|---|---|---|---|---|
| 1 | Kabushiki Gaisha Hodozuka Setsubi | Payload | Manufacturing | May 19, 2026 |
| 2 | soft-inc.com | M3rx | Technology | May 17, 2026 |
| 3 | Oriental Diamond | Thegentlemen | Manufacturing | May 12, 2026 |
| 4 | Zojirushi | Akira | Manufacturing | May 8, 2026 |
| 5 | Nostrum | Thegentlemen | โ | May 6, 2026 |
| 6 | East | Thegentlemen | โ | May 6, 2026 |
| 7 | Marutake | Thegentlemen | Agriculture and Food Production | May 6, 2026 |
| 8 | hokuyo2006.co.jp | Safepay | Manufacturing | May 4, 2026 |
| 9 | JOT | Fulcrumsec | โ | May 1, 2026 |
| 10 | Medical PAY | Killsec | Financial Services | May 1, 2026 |
| 11 | orekait.com | Lockbit5 | โ | May 1, 2026 |
| 12 | kisnet.co.jp | Braincipher | Telecommunication | May 1, 2026 |
| 13 | TokyoHosoKogyo Corporation | Qilin | Manufacturing | Apr 27, 2026 |
| 14 | Denso | Qilin | Manufacturing | Apr 24, 2026 |
| 15 | SOGO Auction | Ransomexx | Business Services | Apr 17, 2026 |
| 16 | GoTip | Ransomexx | Business Services | Apr 17, 2026 |
| 17 | Rogiken / institute of Science Tokyo | Coinbasecartel | Education | Apr 15, 2026 |
| 18 | earthprotect.co.jp | Lockbit5 | Agriculture and Food Production | Apr 14, 2026 |
| 19 | HIGASHIYAMA INDUSTRIES Co.,Ltd. | Qilin | Manufacturing | Apr 10, 2026 |
| 20 | Aichi Electric | Thegentlemen | Manufacturing | Apr 8, 2026 |
Frequently Asked Questions
How many ransomware attacks have occurred in Japan?
Japan has recorded 223 ransomware victim disclosures in this database, ranking #11 globally. This represents 1.2% of all tracked ransomware attacks worldwide.
Which ransomware groups target Japan?
The ransomware groups most active in Japan are Qilin, Clop, Ransomhub, Thegentlemen. These groups collectively account for the majority of victim disclosures attributed to Japan.
Which industries are most targeted by ransomware in Japan?
In Japan, the most frequently targeted sectors are Manufacturing, Technology, Business Services. These industries hold valuable data and often have critical operational requirements that make them attractive ransomware targets.
How does Japan rank globally for ransomware attacks?
Japan ranks #11 globally for ransomware attacks with 223 victim disclosures, representing 1.2% of the worldwide total of 18,041 tracked victims.
How can organisations in Japan protect against ransomware?
Organisations in Japan should implement a layered security approach including regular offline backups, network segmentation, multi-factor authentication, endpoint detection and response (EDR) tools, and employee security awareness training. Monitoring threat intelligence feeds for active groups targeting Japan is also recommended.