← Hermes CU

Privacy Policy

Last updated: May 2026

Hermes CU ("the extension") adds CULPA professor ratings to Columbia's Vergil. This page explains what the extension collects and why. We collect the minimum needed to run the service and improve it — nothing is sold.

What we collect

• Usage pings: when you visit a supported Vergil page, the extension sends a once-per-day event with your Columbia display name and a timestamp, so we can gauge active usage.
• Enrolled classes: on the Vergil registration page, the extension sends your display name and the list of course titles shown on your schedule, once per day.
• Reports you submit: if you use the "report a professor" form, we receive the professor name, the issue type, and any course/UNI you enter.

What we do NOT collect

• No browsing history, no pages outside Vergil.
• No passwords, grades, financial info, or Vergil account credentials.
• No tracking across other websites; no advertising identifiers.

How it's stored

Events are sent to our backend (Supabase) over HTTPS and stored in a private database that only we can read. The professor ratings dataset is fetched by the extension in encrypted form and decrypted locally; it is never written to disk in plaintext.

Permissions

The extension requests only what it needs: storage (to cache the ratings dataset locally), and access to vergil.columbia.edu so it can render ratings on the page. It does not request permission to read your general browsing history.

Your choices

Uninstalling the extension stops all collection. To request deletion of data associated with your display name, email us at the address below.

Contact

Questions or data requests: placeholder@gmail.com