Zero Trust Network Access replaces legacy VPN by granting users the minimum network access required for each session, validated continuously against identity, device posture, and context — rather than trusting any user inside a perimeter. For enterprises facing lateral-movement risk, ransomware propagation, and hybrid-workforce access requirements, ZTNA is now the architectural baseline demanded by NIST 800-207 and every major Zero Trust framework.
Related: SASE · Microsegmentation · Identity Provider · MFA · Privileged Access