Cyber Security Warnings worldwide

Exploited vulnerabilities, malware and breaches — covered for 197 countries. Cyber security warnings flag vulnerabilities that are being actively exploited, plus malware campaigns, ransomware waves and data breaches.

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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.

If a warning is active

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.

Sources used for this category

CISA KEV, NVD, national CERTs, vendor security advisories. Waarning reads these public feeds directly in your browser; the official warning always keeps the name of the authority that issued it.

Cyber Security Warnings in North America

Cyber Security Warnings in South America

Cyber Security Warnings in Oceania

Frequently asked questions

What is a cyber security warning?

Where does Waarning get cyber security warnings from?

Public sources: CISA KEV, NVD, national CERTs, vendor security advisories. Waarning never re-labels an official warning as its own.

Other warning categories

Generated 2026-10-12.