CTI · reviewed · 2026-10-09

Ransomware attack disrupts Japan's IDCF Cloud used by govt clients

Full story & timeline

MITRE ATT&CK

• T1486 Data Encrypted for Impact Impact

Indicators

No curated indicators tied to this case.

Detections

No detection content yet — case analysis did not yield signal-specific telemetry. Check back after the next daily CTI pass.

References

• https://www.bleepingcomputer.com/news/security/ransomware-attack-disrupts-japans-idcf-cloud-used-by-govt-clients/
• https://www.idcf.jp/news/topics/20261007001
• https://www.idcf.jp/news/topics/20261007002
• https://www.idcf.jp/news/topics/20261008001
• https://fawkes.rocks/2026/10/08/idcf-cloud-ransomware-attack-hits-495-japanese-customers/
• https://cyberworldops.eu/en/idcf-cloud-ransomware-attack-disrupts-495-organizations-in-eastern
• https://cyber.netsecops.io/articles/japanese-cloud-provider-idcf-cloud-hit-by-crippling-ransomware-attack/?utm_source=mastodon&utm_medium=social&utm_campaign=daily