Zero Trust Network Access (ZTNA) is the FortiSASE feature that ensures least-privileged user access to all applications. ZTNA operates on the principle of "never trust, always verify," providing secure access based on the identity of users and devices, regardless of their location.
* Zero Trust Network Access (ZTNA):
* ZTNA ensures that only authenticated and authorized users and devices can access applications.
* It applies the principle of least privilege by granting access only to the resources required by the user, minimizing the potential for unauthorized access.
* Implementation:
* ZTNA continuously verifies user and device trustworthiness and enforces granular access control policies.
* This approach enhances security by reducing the attack surface and limiting lateral movement within the network.
References:
FortiOS 7.2 Administration Guide: Provides detailed information on ZTNA and its role in ensuring least- privileged access.
FortiSASE 23.2 Documentation: Explains the implementation and benefits of ZTNA within the FortiSASE environment.

For a customer looking to upgrade their legacy on-premises proxy to a cloud-based proxy for a hybrid network, the combination of Secure Web Gateway (SWG) and Inline Cloud Access Security Broker (CASB) features in FortiSASE will provide the necessary capabilities.
* Secure Web Gateway (SWG):
* SWG provides comprehensive web security by inspecting and filtering web traffic to protect against web-based threats.
* It ensures that all web traffic, whether originating from on-premises or remote locations, is inspected and secured by the cloud-based proxy.
* Inline Cloud Access Security Broker (CASB):
* CASB enhances security by providing visibility and control over cloud applications and services.
* Inline CASB integrates with SWG to enforce security policies for cloud application usage, preventing unauthorized access and data leakage.
References:
FortiOS 7.2 Administration Guide: Details on SWG and CASB features.
FortiSASE 23.2 Documentation: Explains how SWG and inline-CASB are used in cloud-based proxy solutions.