From CPU Spikes To Defense: How Varonis Prevented A Ransomware Disaster
Varonis, Thursday, October 9th, 2025
Discover how Varonis' advanced threat response ensured zero downtime and complete remediation when stopping a ransomware attack.
Varonis recently helped a customer who observed a spike in CPU activity on a server in their environment, where a shallow review of the device revealed an in-progress compromise by an advanced threat actor we later attributed to RansomHub affiliates.
Over the next 48 hours, our team worked closely with the customer to investigate, hunt, contain, and remediate the threat before it could become ransomware. Due to our team's advanced intervention capabilities, we secured the customer's network with zero business downtime. Continue reading to see how the incident started.