Privacy

Last updated: June 2026

What ESystem collects

• Your Google account email and display name (used to sign you in, identify your account, and gate the admin panel).
• The URLs and domains you (or the extension) add to your blocklist.
• Custom detection words you add.
• API key creation, revocation, and last-used timestamps.

What ESystem does NOT collect

• Your browsing history beyond what the extension explicitly reports to your own blocklist.
• Page content, screenshots, or images.
• Device identifiers, IP addresses (beyond standard Vercel edge logs), or fingerprinting data.
• Third-party analytics, ads, or trackers.

Where data is stored

All account and blocklist data is stored in a Supabase Postgres database that we operate. Extension-to-backend communication is TLS-encrypted in transit.

Data deletion

To delete your account and all associated data, sign in and email us at privacy@masud.app. We will delete your profile, API keys, blocklist, and custom words within 7 days.

Open source

The backend is open source at github.com/KamillyAgent/ESystem-backend. Audit the code, self-host, or report issues there.