Software-defined perimeter pioneered at scale — single-packet authorization, deep policy granularity, hybrid-first architecture. While the SASE vendors retrofit ZTNA into broader platforms, Appgate built purpose-specific ZTNA for enterprises that need it deep, not bundled. For CISOs replacing legacy VPN at scale, this is the conversation that doesn't end with "yeah, but our SD-WAN vendor also kind of does this."
Appgate delivers enterprise ZTNA built on a software-defined perimeter (SDP) architecture. Resources are completely invisible to unauthorized users — the SPA mechanism means an attacker can't even probe a service they aren't authorized for. Policy granularity goes beyond the "role-based access" most ZTNA vendors stop at: device posture, location, time, application context, and risk signals all feed into a single decision per session.
1,000+ user organization, mature security program, real segmentation requirements. Appgate's enterprise floor is where it shines.
Most ZTNA products optimize for SaaS-only access. If you have significant on-prem and IaaS workloads, the hybrid-first design matters.
If Cato or another SASE platform covers your ZTNA need adequately, layering Appgate on top adds cost without clear benefit. Worth comparing.
Appgate's scope and cost assume enterprise. Brief Nord Security or Cisco Duo at smaller scale.