RMM abuse is the misuse of remote monitoring and management software to gain interactive control over a system through tools that look legitimate. RMM platforms are designed for IT administration: they let operators run commands, move files, open sessions, and manage endpoints at scale. In an attack, that same trusted functionality can be turned against the victim.
This matters because security controls often treat approved admin tooling as low risk. If an attacker steals credentials, hijacks a session, or installs a remote-management agent, they can blend in with normal support activity and avoid obvious malware signatures. Defenders should monitor for unusual logins, new RMM deployments, strange parent-child process chains, and remote sessions outside normal hours or from unexpected locations. Tightening MFA, limiting which RMM tools are allowed, and alerting on outbound connections to remote-management services can reduce the chance that a convenience tool becomes an intrusion path.