Cyber Security Warnings in Japan
Cyber Security Warnings for Japan (East Asia) come from Japan Meteorological Agency (JMA), Fire and Disaster Management Agency (FDMA). This page explains what these warnings mean, which authority publishes them, and how to check the current status for Tokyo.
Check live exploited status for TokyoBrowse all warnings
At a glance
- countryJapan · Asia
- reference cityTokyo (35.68, 139.69)
- emergencyPrimary emergency number110 / 119
- risk profilestorm, flood, heat, cold, wildfire, earthquake, volcano, tsunami, landslide, coastal, radiation
What counts as a cyber security warnings
Cyber security warnings flag vulnerabilities that are being actively exploited, plus malware campaigns, ransomware waves and data breaches. National CERTs and vendors publish advisories with affected versions and patches, and CISA maintains a catalogue of known exploited vulnerabilities that is used as the priority list for patching.
Who issues cyber security warnings in Japan
Warning levels, colours and terminology are set nationally. Always read the warning text of the issuing authority: it names the affected districts, the expected time window and the recommended action.
If a warning is active in Japan
- Patch the affected product immediately; exploited vulnerabilities are attacked within days.
- Enable multi-factor authentication on email, banking and cloud accounts.
- Back up offline - ransomware deletes connected backups first.
Where the data comes from
Waarning reads public, key-free sources for Japan: CISA KEV, NVD, national CERTs, vendor security advisories. Measurements and official warnings are shown separately, and official warnings always keep the name of the authority that issued them.
Frequently asked questions
Who issues cyber security warnings in Japan?
Japan Meteorological Agency (JMA), Fire and Disaster Management Agency (FDMA). Waarning does not issue warnings; it aggregates the public feeds of these bodies and links back to the original source.
What is the emergency number in Japan?
The primary emergency number is 110 / 119. Use it for a life-threatening situation; for non-urgent reports use the local police station number.
Does Waarning show live cyber security warnings for Japan?
Yes. The dashboard loads the current values for Tokyo from CISA KEV, NVD, national CERTs, vendor security advisories. You can open it with one click and the location is already set.
More warnings for Japan
- Severe Weather Warnings
- Flood Warnings
- Heat Warnings
- Cold and Snow Warnings
- Wildfire Warnings
- Air Quality Warnings
Cyber Security Warnings in nearby countries
Generated 2026-10-18. Waarning is not an official warning service; in an emergency follow local authorities and emergency services.