To no surprise, ransomware continued to disrupt organizations across every sector in 2025.
Although each incident looked different, most shared the same root causes: weak access controls, overly trusted internal networks, and limited protection around sensitive data systems.
Listed below ten of the year’s most significant ransomware incidents, followed by the patterns behind them and the security gaps they exposed — and how Mamori.io helps organizations strengthen resilience where it matters most.
TABLE OF CONTENTS
Top 10 Ransomware Incidents of 2025
Similarities & Patterns Across These Attacks
Security Gaps Exposed — and How Mamori.io Helps Close Them
No Cost, Big Protection.
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Top 10 Ransomware Incidents of 2025
1. Jaguar Land Rover (UK)
When: Early September 2025
Impact: Severe Operational Impact and Economic Damage
A cyberattack caused weeks-long shutdowns across multiple UK manufacturing plants. Analysts estimate over $2.5 billion in economic damage, making it one of the UK’s most expensive cyber events ever. A stark reminder of how operational technology (OT) can be crippled by
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