Terms of Service for CipherOnce

Last updated: 12/26/2025

Welcome to CipherOnce ("we," "us," or "our"). These Terms of Service ("Terms") govern your access to and use of our website, services, and applications (collectively, the "Service"). Please read them carefully.

1. Acceptance of Terms

By accessing or using our Service, you agree to be bound by these Terms and our Privacy Policy. If you do not agree to these Terms, you may not use the Service.

2. Description of Service

CipherOnce provides a zero-knowledge platform for sharing sensitive information securely. Secrets are encrypted client-side (in your browser), and we have no ability to access or decrypt your content. The Service allows you to create self-destructing links with configurable expiration times and view limits.

3. User Accounts

To access certain features, such as managing secrets and viewing access logs, you must create an account. You are responsible for safeguarding your account credentials and for all activities that occur under your account. You agree to notify us immediately of any unauthorized use of your account.

4. Acceptable Use Policy

You agree not to use the Service to:

  • Transmit any content that is unlawful, harmful, threatening, abusive, harassing, defamatory, vulgar, obscene, or otherwise objectionable.
  • Share illegal information, including but not limited to copyrighted material you do not have the rights to, or material related to illicit activities.
  • Impersonate any person or entity or falsely state or otherwise misrepresent your affiliation with a person or entity.
  • Attempt to gain unauthorized access to, interfere with, damage, or disrupt any parts of the Service, the server on which the Service is stored, or any server, computer, or database connected to the Service.
  • Use the Service for any form of spamming, phishing, or distribution of malware.

Violation of this Acceptable Use Policy may result in the immediate termination of your access to the Service.

5. Content Responsibility and Ownership

You retain full ownership of the content you create and share through the Service. Because of our zero-knowledge architecture, you are solely responsible for the content you transmit. We have no knowledge of your content and no liability for it. You are also solely responsible for maintaining the confidentiality of the shareable links you create.

6. Disclaimer of Warranties

The Service is provided on an "AS IS" and "AS AVAILABLE" basis. We make no warranty that the Service will be uninterrupted, timely, secure, or error-free. You use the Service at your own risk. We expressly disclaim all warranties of any kind, whether express or implied, including, but not limited to, the implied warranties of merchantability, fitness for a particular purpose, and non-infringement.

7. Limitation of Liability

To the fullest extent permitted by law, CipherOnce shall not be liable for any indirect, incidental, special, consequential, or exemplary damages, including but not limited to, damages for loss of profits, goodwill, use, data, or other intangible losses (even if we have been advised of the possibility of such damages), resulting from your use of the Service. Because we cannot access your data, we cannot be responsible for data loss.

8. Termination

We may terminate or suspend your access to the Service at any time, with or without cause or notice, for any reason, including for a breach of these Terms. Upon termination, your right to use the Service will immediately cease.

9. Changes to Terms

We reserve the right, at our sole discretion, to modify or replace these Terms at any time. If a revision is material, we will provide at least 30 days' notice prior to any new terms taking effect. What constitutes a material change will be determined at our sole discretion.

10. Governing Law

These Terms shall be governed and construed in accordance with the laws of the jurisdiction in which the company is based, without regard to its conflict of law provisions.

11. Contact Us

If you have any questions about these Terms, please contact us.