VPC Service Controls without pain

Perimeters are powerful but can stall development if applied blindly. Use them where data exfiltration risk justifies the complexity.

When to consider VPC‑SC

You host regulated data in BigQuery/Storage and have cross‑boundary access concerns. You can commit to managing access context.

The minimal viable perimeter

Start with protected projects and a small set of ingress/egress rules. Test developer workflows (CI, notebooks, connectors) before expanding.

Alternatives/adjacent controls

Private Service Connect and tight IAM often deliver most of the benefit with less friction. Use perimeters sparingly.

This article is for engineering guidance. It is not legal advice.