Ransomware
Definition
Ransomware is malicious software that encrypts or steals an organisation's data and demands payment to restore access or prevent publication.
Why It Matters
It remains the most costly cyber threat for many sectors and a central driver of cyber insurance losses.
Latest Coverage
- US, UK and German agencies issue joint #StopRansomware advisory on SafePay 22 October 2026
- CISA issues #StopRansomware advisory on SafePay group targeting businesses and critical infrastructure 21 October 2026
- CISA flags exploited Palo Alto PAN-OS, Cisco Secure Email Gateway and Ahsay flaws 19 October 2026
- CISA adds exploited Palo Alto PAN-OS, Cisco Secure Email Gateway and Ahsay flaws to KEV catalog 18 October 2026
- CISA flags actively exploited flaws in Palo Alto PAN-OS, Cisco Secure Email Gateway and Ahsay backup 16 October 2026
More in Cybersecurity and AI Threats.
Related Terms
- Known Exploited Vulnerabilities (KEV) catalog
- Zero-day vulnerability
- CVE
- Prompt injection
- Software supply chain attack
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