# Authorised Access Only > Portal rule for the private areas. Last updated 2026-08-07 — the > client sign-in route is live. The public pages of this hub are open to everyone. The private areas (client portals and collaborator workspaces) are **invite-only**: every account is approved manually by Opti-Gen Core Systems, and there is no public registration and no automatic approval. How the live sign-in route works, honestly: - **Existing clients** enter their email in the client panel. If the address is on our private client list, we email that address its portal link. If it isn't, the form says so and **no email is sent to anyone**. The emailed link is a doorway, not a credential — each portal's own invite gate is the real authentication. - **Repo access requests** are reviewed by a human. Approval, if given, arrives through a separate channel — nothing on this site grants access by itself. Nothing on this site creates an account, and no form auto-approves anything. Any page or message claiming you can register here or promising instant access is not ours.