Secure build sharing with publishers, QA and press without losing control

The build is the crown jewel and the weakest link Builds are large, urgent, and needed by people outside the studio. That combination pushes teams toward whatever service uploads fastest, which is almost always a service that can read the file and keeps the link alive forever.

Requirements for a real build pipeline - **Encrypted before upload**, so the hosting provider never holds a playable copy. - **Chunked and resumable**, because 40–300 GB transfers do not survive a single dropped connection. - **Verified after upload**, so you know the stored artefact matches what left the machine. - **One link per recipient**, with independent expiry and view budget. - **Watermarked viewing** for anything reviewed in a browser. - **Instant revocation** and an append-only log of access events.

Why one shared URL is the mistake Sending the same URL to a publisher, a QA vendor, an agency and three creators is convenient and destroys your ability to answer the only question that matters after a leak: which channel did this come from? Separate links cost seconds to create and turn a crisis into a short list.

Return paths are part of the pipeline QA sends back captures, crash dumps and repro videos; localisation sends builds back. If those come through personal email, the material has already left the controlled path. Give every partner an encrypted upload destination in their own space.

Milestone close as a ritual At the end of every milestone: revoke the links, remove the partner memberships, let the key rotation run, and export the access log for the record. Three minutes of hygiene, and the access surface goes back to zero instead of accumulating for two years.

What you can prove afterwards Because access events are logged without exposing content, you can show a publisher exactly who had the build and when access ended, and you can do it without creating a new pool of readable data to defend.