05 / PRIVACY NOTICE
Privacy notice
How this corporate website handles essential server logs, voluntary email correspondence and language choices, and your information rights.
1. Scope
This notice covers the corporate website at deffuture.com. Separate product websites, webmail and other external services have their own rules and privacy notices.
2. Essential server logs
To operate the website, servers may log request time, requested path, browser type, referrer, IP address and error status for security, troubleshooting and capacity analysis.
3. Cookies and language choices
We do not set tracking cookies or load advertising or third-party analytics SDKs. Language follows the Chinese or English URL you visit; switching requires no login and stores no persistent language preference in your browser. The copy-email button writes to the clipboard only when clicked and never reads your clipboard.
4. Voluntary emails and external services
If you email us, we process correspondence as needed for communication, collaboration or legal obligations. After you follow an external product or email link, that service handles information under its own rules.
5. Retention and protection
Operational logs and correspondence are retained only as needed for their purposes and applicable legal obligations, with access limited to security and operations responsibilities. Incidents, disputes or legal requirements may require longer retention within the necessary scope.
6. Your rights
You may contact us to request access to, correction of or deletion of personal information you voluntarily provided. We may verify identity and handle requests under applicable law; information we must retain by law may not be immediately deleted.
7. International access and service boundaries
The corporate website is hosted in mainland China. An English edition does not mean website data is separately stored abroad. Product and email services describe their own information handling.
8. Updates and contact
We will update this notice when functionality or information handling changes. Contact us at the existing company email below for personal information questions.