Threat Landscape Report: The PSTS Sector’s Unique Vulnerabilities

**Executive Summary:** The ReliaQuest GreyMatter report warns of elevated and growing cyber risk to the professional, scientific, and technical services (PSTS) sector — highlighting a 34% increase in ransomware targeting, active nation-state espionage (notably APT41), a surge in initial-access broker activity (116% increase), credential theft and impersonating domains, and exploitation of vulnerabilities such as CVE-2024-36412; it recommends rapid detection, patching, automation-driven containment (GreyMatter ARPs) and tightened access controls.