macOS Weaknesses Chained to Silently Disable Endpoint Security Agents

A standard non-admin account is sufficient to conduct an attack that exploits legitimate OS behavior rather than software vulnerabilities. The post macOS Weaknesses Chained to Silently Disable Endpoint Security Agents appeared first on SecurityWeek .

SecurityWeek reports that XM Cyber researchers discovered a technique on macOS that lets a standard, non-admin user silently disable enterprise endpoint security agents (EDR, MDM) by chaining legitimate OS behaviors and code-signing trust cache persistence, without exploits or alerts.[1] This is a host-OS level weakness affecting how trusted components and privileged XPC methods can be impersonated, undermining assumptions that endpoint agents always enforce policy. From a CyberSE.AI perspective, any AI agents or data pipelines that rely on endpoint telemetry, EDR enforcement, or MDM controls inherit this weakness as a supply chain risk: an attacker who disables the endpoint stack can blind AI-driven detection, corrupt incident-response inputs, and weaken data integrity guarantees. Organizations should treat endpoint security tooling and OS trust mechanisms as critical upstream components in their AI security architecture, and map these into SBOM-style inventories, continuous health checks, and compensating controls (e.g., server-side validation of client signals, redundant telemetry sources, and hardening of agent deployment and trust models).