Why should I use ABEGuardOT instead of a traditional IT security tool like Tenable, Rapid7, or Nessus?

IT security scanning tools operate by actively probing network devices for open ports, services, and vulnerabilities. In IT environments this is acceptable. In OT environments — where PLCs and DCS controllers are running continuous processes — unsolicited network traffic can cause unexpected behavior, communication timeouts, or controller faults. Tenable OT (formerly Indegy), Nessus, and similar tools were built on IT scanning heritage and require significant tuning to avoid disrupting OT systems. ABEGuardOT uses a passive folder-based agent with no active scanning of controllers. It was designed from the start for OT — by engineers who have spent their careers working inside process control systems.