HIGHRansomware
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An overview of ransomware threats in Japan in 2025 and early detection insights from Qilin cases

Thursday, April 2, 2026 at 10:00 AM UTC·Source: Cisco Talos

Updated: Thursday, April 2, 2026 at 05:46 PM UTC

Executive Summary

There were 134 ransomware incidents reported in Japan in 2025, representing a 17.5% year-over-year increase from 2024.

Analysis

There were 134 ransomware incidents reported in Japan in 2025, representing a 17.5% year-over-year increase from 2024.
Source Attribution

Originally published by Cisco Talos on Apr 2, 2026.

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