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Ransomware incidents in Japan in the first half of 2026: Investigation of The Gentlemen’s infrastructure and evidence of Qilin's AI use

Cisco Talos · · International · Data Breaches

Ransomware incidents in Japan rose 4.7% year over year. The Gentlemen was the most active group, with leak-site listings more than doubling from January to July. Qilin ranked second and appeared to use AI, while SMEs with capital under JPY 1 billion represented 80% of victims.

Who should care: Cybersecurity · Privacy officers · Administrators · Lawyers · Compliance · General readers · AI governance · Policy

#breach#enforcement#ai#security
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