Q3 2026 Sets New Record for Ransomware Attacks

Infosecurity Magazine reports that Q3 2026 saw 2,627 claimed ransomware attacks, the highest quarterly total on record according to research published by Comparitech. The data shows significant increases across critical sectors including finance, technology, education and healthcare. The figures reflect publicly claimed attacks tracked via ransomware leak sites, meaning the true scale of ransomware activity is likely higher when unreported incidents and organisations that pay ransoms quietly are included. The research underscores that ransomware remains a high-volume, industrialised threat affecting organisations of all sizes and sectors.

Why this matters for UK organisations

For UK businesses, this trend reinforces that ransomware is not slowing down and continues to evolve in both scale and targeting sophistication. The increase in attacks against finance, technology and healthcare sectors is particularly relevant given the operational and regulatory pressures these industries face. Ransomware groups are refining their targeting, focusing on organisations where downtime, data loss or reputational damage creates the strongest incentive to pay. The volume of attacks also suggests that initial access methods, whether through phishing, credential compromise or unpatched vulnerabilities, remain effective at scale. The sustained pressure means that organisations cannot afford to assume they will not be targeted, and must instead focus on resilience, detection and recovery capabilities that assume compromise is a realistic possibility.

What to review

This is a prompt to review whether your organisation has tested its ransomware response plan recently, confirmed that backups are isolated and recoverable, and ensured that privileged access is monitored and protected. Consider whether your incident response playbook includes clear decision-making processes for ransom demands, communication with regulators and customers, and coordination with law enforcement. Review whether your organisation has visibility into initial access vectors such as phishing, credential stuffing or unpatched vulnerabilities, and whether controls are in place to detect and respond to lateral movement or unusual administrative activity. The sustained volume of attacks means preparedness and resilience matter more than assuming you will not be targeted.

Source: Infosecurity Magazine