Hướng dẫn xoá dữ liệu

This page explains how to ask CNTech to delete your personal data, including data received through the cntech.vn website and through Facebook. How we use data is described in the Privacy Policy.

Option 1: Send an email

Email cntech024@gmail.com with the subject "Yêu cầu xoá dữ liệu" (the Vietnamese subject line; open an email with the subject filled in). In the message include:

• your name;
• the phone number or email you used when contacting CNTech; if you contacted us through Facebook, also your Facebook display name.

Option 2: If you use Facebook

1. Open Facebook and go to Settings › Apps and Websites.
2. Select the CNTech app and remove it.
3. Send a request as in Option 1.

Removing the app only revokes access; it does not by itself delete data already stored in CNTech's system, so you still need to send the request in step 3.

What we delete

• We delete your contact details and all your personal data in CNTech's internal system: name, phone number, email, message, and information received from Facebook (messages, lead generation ad forms) if it was saved in the system.
• Data that the law requires us to keep (for example accounting records if you are already a customer) is kept until the legal period ends; we will tell you.
• Backups do not keep deleted data in new backups; old backups are deleted automatically on rotation.
• Meta keeps its own copy under Meta's policies, which CNTech does not control. You manage that copy in Facebook or under Meta's policies.

Time limits

We reply within 2 working days and delete within 20 days of receiving the request (30 days if a processor or third party must also act). A complex request is extended once, by at most 20 more days, and we will tell you why. These limits come from Article 5 of Decree No. 356/2025/NĐ-CP, which implements the Law on Personal Data Protection No. 91/2025/QH15. When done, we confirm by email.

To avoid deleting someone else's data by mistake, we may ask for further information to verify that you are the data subject.

Contact

Công ty TNHH Công nghệ CNTech Việt Nam

• Address: Số 15/172 An Dương Vương, tổ dân phố Phú Mẫn, Phường Yên Phong, Thành phố Bắc Ninh, Vietnam
• Email: cntech024@gmail.com
• Phone: 0868 158 658