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![[Third Week of May 2026] Four Incidents at Japanese Companies: From GitHub Credential Leaks to Ransomware Attacks](https://static.wixstatic.com/media/95ec1f_e00e67a4854b4a8882a13950e4a7a324~mv2.png/v1/fill/w_1280,h_669,fp_0.50_0.50,q_35,blur_30,enc_avif,quality_auto/95ec1f_e00e67a4854b4a8882a13950e4a7a324~mv2.png)
![[Third Week of May 2026] Four Incidents at Japanese Companies: From GitHub Credential Leaks to Ransomware Attacks](https://static.wixstatic.com/media/95ec1f_e00e67a4854b4a8882a13950e4a7a324~mv2.png/v1/fill/w_1280,h_669,fp_0.50_0.50,q_95,enc_avif,quality_auto/95ec1f_e00e67a4854b4a8882a13950e4a7a324~mv2.png)
![[Week 2 of May 2026] Top 4 Cyber Threats Targeting Japanese Companies | npm Supply Chain Attacks, Fake AI Extensions & DNS Hijacking PIPELINE](https://static.wixstatic.com/media/95ec1f_df7cf37dcaa7470da1331eac6e21b25c~mv2.png/v1/fill/w_1280,h_669,fp_0.50_0.50,q_35,blur_30,enc_avif,quality_auto/95ec1f_df7cf37dcaa7470da1331eac6e21b25c~mv2.png)
![[Week 2 of May 2026] Top 4 Cyber Threats Targeting Japanese Companies | npm Supply Chain Attacks, Fake AI Extensions & DNS Hijacking PIPELINE](https://static.wixstatic.com/media/95ec1f_df7cf37dcaa7470da1331eac6e21b25c~mv2.png/v1/fill/w_1280,h_669,fp_0.50_0.50,q_95,enc_avif,quality_auto/95ec1f_df7cf37dcaa7470da1331eac6e21b25c~mv2.png)
![[April 4th Week, 2026] Top 3 Incidents at Japanese Companies: Simultaneous Multiple Attacks on Unauthorized Access, Ransomware, and Overseas Bases PIPELINE](https://static.wixstatic.com/media/95ec1f_d9fa7aad0cbd48fca7833df843dffbd0~mv2.png/v1/fill/w_1280,h_669,fp_0.50_0.50,q_35,blur_30,enc_avif,quality_auto/95ec1f_d9fa7aad0cbd48fca7833df843dffbd0~mv2.png)
![[April 4th Week, 2026] Top 3 Incidents at Japanese Companies: Simultaneous Multiple Attacks on Unauthorized Access, Ransomware, and Overseas Bases PIPELINE](https://static.wixstatic.com/media/95ec1f_d9fa7aad0cbd48fca7833df843dffbd0~mv2.png/v1/fill/w_1280,h_669,fp_0.50_0.50,q_95,enc_avif,quality_auto/95ec1f_d9fa7aad0cbd48fca7833df843dffbd0~mv2.png)
Japan Cyber Threat Report – March 2026 Summary | Ransomware, Phishing & Data Breaches (Weeks 1–3)
A comprehensive summary of cyber threats targeting Japan in March 2026. Covers ransomware incidents, phishing campaigns, dark web data leaks, ClickFix surge, and critical vulnerabilities observed across Weeks 1–3.
Mar 27
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