Legal / 02
Privacy Notice
Last updated: August 21, 2026 — Version 1.0
Tetrarch Systems — entreprise individuelle — SIRET 923 782 528 00023 is responsible for the personal data described in this notice. We collect only what is necessary to operate this website and answer you.
Data we process
When you email us, we receive the information you choose to provide, such as your name, email address and message. Our hosting and security providers may also process limited technical logs, such as IP address, browser information, timestamps and requested pages.
Purposes and legal bases
We process correspondence to answer enquiries and take pre-contractual steps at your request. Technical logs are processed for our legitimate interests in security, reliability, fraud prevention and service diagnostics.
Cookies
This website does not use advertising cookies. Essential technical storage may be used where required for security, language preferences or core operation.
Recipients and transfers
Data is accessible only to Tetrarch Systems and service providers acting on our instructions for hosting, security or communications. If a provider processes data outside the European Economic Area, we rely on an adequacy decision or appropriate contractual safeguards where required.
Retention
Correspondence is kept only as long as needed to handle the request and meet legal obligations. Security logs are retained for a limited period proportionate to their purpose.
Your rights
Subject to applicable conditions, you may request access, correction, erasure, restriction, portability or objection, and withdraw consent where processing relies on consent. Contact contact@tetrarchsystems.com to exercise these rights.
Complaints
You may lodge a complaint with the French data protection authority, the CNIL, if you believe your rights have not been respected.
Security and changes
We use reasonable technical and organizational measures to protect personal data. We may update this notice when our website, providers or legal obligations change; the current version is identified by the date above.