An intrusion path is the method or route an attacker uses to get into a system. It may begin with stolen credentials, a vulnerable web application, phishing, exposed remote access, or a misconfigured service. In security work, identifying the intrusion path means tracing the first trusted point an attacker reached and separating that from later movement inside the environment.
This matters because defenses depend on how access was gained. If the path was a weak password, teams may reset credentials and strengthen authentication. If it was a software flaw, they may patch the service, isolate it, and review logs for signs of exploitation. During incident response, confirming the intrusion path helps determine scope, preserve evidence, and stop reinfection. Until that route is verified, analysts should treat related findings as leads, not conclusions.