Throughout early 2026, SentinelOne’s® Digital Forensics & Incident Response (DFIR) team has responded to several incidents in which FortiGate Next-Generation Firewalls (NGFW) have been compromised to establish a foothold in the targeted environment. Each incident was detected and stopped during the lateral movement phase of the attack. Fortinet disclosed and issued patches for several high-severity vulnerabilities, allowing unauthorized access during our investigation period. Successful explo
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Remote Access Trojans, also known as RATs, have been around for years, although their prevalence in the market has surged recently. RATs are digital skeleton keys, giving an attacker remote control over a system, often without the user ever knowing. This kind of access often starts with someone clicking a malicious link or opening a rogue attachment in a phishing email or messaging app. From there, the attacker can move laterally, steal data, monitor activity, or trigger ransomware.
RATs have
