LenelS2 OnGuard 8.4 advances enterprise access control with enhanced scalability, resiliency, and browser-based operations. The release improves OpenAccess API performance, introduces dedicated authentication and hardware relay services, and begins a transition to 64-bit architecture for stronger reliability in demanding environments. Security updates include FIPS 140-3 certified cryptographic options, Mutual TLS authentication, and broader Fully Qualified Domain Name support for Zero-Trust and cloud-ready deployments. OnGuard 8.4 also expands Honeywell 35 Series NVR and camera integration, modernizes monitoring with customizable video-centric layouts, and adds cloud deployment flexibility, helping organizations streamline administration, strengthen cybersecurity, and elevate security operations.