Bottom line: Gunra ransomware attacks can be prevented by patching VPNs and firewalls in 24-48 hours.
What's happening: Gunra ransomware attackers exploited unpatched VPNs and firewalls at companies like Zscaler and Palo Alto Networks to gain unauthorized access to sensitive data and systems.
What to do: Implement a patch management process for VPNs and firewalls, and ensure that security teams have the necessary tools and training to respond to ransomware attacks.