FortiDeceptor by Fortinet is a deception-based breach protection platform that provides early detection and isolation of sophisticated human and automated attacks in both IT and OT environments. The system detects and responds to in-network attacks including stolen credential usage, lateral movement, man-in-the-middle attacks, and ransomware. It breaks the kill chain and stops malware during active attack sequences. The platform generates alerts based on real-time engagement with attackers and malware, providing attack activity analysis and isolation. It can be deployed as SaaS (cloud-hosted), on-premises (hardware/VM), or in public cloud environments (AWS, Azure, GCP). Designed for both isolated and connected industrial networks, it incorporates specialized OT functionality including the ability to mimic human-machine interfaces (HMIs) and programmable logic controllers (PLCs).