Privacy Policy
Last updated June 2026
This Privacy Policy explains how Hopfield, offered by Sandcastle Labs, LLC (“Sandcastle Labs”, “we”), collects, uses, and protects your information (the “Service”).
1. Information we collect
We collect account information (such as your email), content you choose to ingest, and usage data such as search queries and interaction events used to power analytics and improve relevance.
2. How we use information
We use information to operate and improve the Service, generate search and analytics features, provide support, and keep the Service secure. We do not sell your personal information.
3. Your content
Content you ingest is processed to build your search index and generate answers. It is used to provide the Service to you and is not used to train shared models without your consent.
4. Subprocessors
We rely on trusted infrastructure and AI providers to deliver the Service. These subprocessors are bound by confidentiality and data protection obligations.
5. Data retention
We retain your data for as long as your account is active or as needed to provide the Service. You may request deletion of your data at any time.
6. Security
We use administrative, technical, and physical safeguards designed to protect your information. No system is perfectly secure, but we work to protect data in transit and at rest.
7. Your rights
Depending on your location, you may have rights to access, correct, export, or delete your personal information. Contact us to exercise these rights.
8. Contact
For privacy questions or requests, contact Sandcastle Labs, LLC at [email protected].
Questions about this policy? Email [email protected].