Why Perimeter Firewall is Not Enough: Lessons from the GoAnywhere MFT Zero-Day
In September 2025, the cybercriminal group Storm-1175 exploited a zero-day vulnerability in GoAnywhere Managed File Transfer to deploy Medusa ransomware across multiple organizations. The attack succeeded despite perimeter defenses because no signature existed to detect it, and by the time one did, attackers had already established persistence and were moving freely through victim networks. This … Continued
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