implementing-beyondcorp-zero-trust-access-model

# Implementing BeyondCorp Zero Trust Access Model ## When to Use - When replacing traditional VPN infrastructure with identity-based application access - When migrating to Google Cloud and requiring zero trust access for internal applications - When implementing device trust verification as a prerequisite for resource access - When needing context-aware access policies based on user identity, device posture, and location - When securing access for remote and hybrid workforce without network-level trust **Do not use** when applications require raw network-level access (e.g., UDP-based protocols not supported by IAP), for consumer-facing public applications, or when the organization lacks an identity provider with MFA capabilities. ## Prerequisites - Google Cloud organization with Cloud Identity or Google Workspace - Identity-Aware Proxy (IAP) API enabled on the GCP project - Chrome Enterprise Premium license for endpoint verification - Applications deployed behind a Google Cloud Load Balancer or on App Engine/Cloud Run - Endpoint Verification extension deployed on all corporate devices - Access Context Manager API enabled ## Workflow ### Step 1: Configure Access Context Manager with Access Levels Define access levels that represent trust tiers based on device and user attributes. ```bash # Enable required APIs gcloud services enable iap.googleapis.com gcloud services enable accesscontextmanager.googleapis.com gcloud services enable beyondcorp.googleapis.com # Create ...