Privacy

Updated September 23, 2026.

When you sign in, HyperDD receives and stores your Google account name, email address, profile image, and sign-in tokens. We use these to identify your account. We store sessions, including IP address and browser information, to maintain sign-in and protect the service.

If you subscribe, we store your Stripe customer and subscription identifiers, status, and billing periods to grant research access. Stripe handles payment details; HyperDD does not store your full card number. Agent keys are stored as hashes and can be revoked from your account page.

Cloudflare hosts the site and account database. We use account data to operate the service, handle billing, and prevent abuse. We retain it while needed for those purposes and applicable obligations.

For access, correction, or deletion requests, contact bloominvesting@googlegroups.com.