How to secure RMM software: 8 controls MSPs should test

RMM platforms provide MSPs with privileged, unattended administrative access to customer devices, making them a valuable target for attackers. The security of these platforms depends on multiple controls: continuous endpoint discovery and inventory, risk-based patch management with rollback capabilities, multifactor authentication and role-based access controls for technicians, alert prioritization to reduce noise, governance of automation and scripting, integration with security operations for incident response, recovery readiness including backup validation, and strict tenant separation with audit trails. Recent high-severity vulnerabilities in RMM software (e.g., CVE-2026-86218 in N-able N-central) and exploitation of zero-days in management planes underscore the risks. MSPs should evaluate RMM tools by testing these controls in operational environments rather than relying solely on feature lists. The Acronis Cyber Platform exemplifies a unified approach integrating RMM with cybersecurity and backup services to support these controls.

Compromise of RMM software or its privileged accounts can lead to widespread access across multiple customer environments, significantly increasing the blast radius of attacks. Vulnerabilities in RMM platforms have been exploited in the wild, resulting in unauthorized access and potential downstream network compromises. Poorly secured RMM tools can facilitate ransomware attacks and other malicious activities by attackers leveraging legitimate administrative channels. Failure to implement strong identity controls, tenant separation, and secure automation increases the risk of lateral movement and data breaches across MSP-managed environments.

MSPs should rigorously test RMM platforms against the eight identified security controls: endpoint discovery, patch management, privileged access controls, alert prioritization, secure automation, integration with security operations, recovery readiness, and tenant separation. Implement multifactor authentication and role-based access controls with least privilege principles. Ensure patch management supports prioritization, rollback, and fail-safe deployment. Validate that automation and scripting have approval workflows and audit logs. Confirm that recovery processes integrate backup validation and malware scanning. Verify tenant isolation and detailed audit trails for compliance and incident investigation. Use platforms that integrate RMM with cybersecurity and backup services to maintain workflow continuity and reduce operational complexity. Stay current with vendor advisories and apply patches promptly to known vulnerabilities such as CVE-2026-86218.