Security

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

Ransomware incidents in Japan rise 4.7% year over year, and The Gentlemen is the most active group, with leak-site listings more than doubling from January to July. Qilin ranks second and appears to use AI, while companies with capital under JPY 1 billion account for 80% of victims.

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  1. Cisco Talos

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

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