THREAT‑WATCH
Glossary
Zero Trust Network Access (ZTNA)
A practical implementation of zero trust that grants access to specific applications, not the whole network, after verifying identity and device health each time.
ZTNA replaces traditional VPNs, which typically grant broad network access once connected, with per-application access brokered through an identity- and context-aware gateway. If a device is compromised, ZTNA limits what an attacker can reach to the specific application the user was authorized for, rather than the entire internal network a VPN would expose.