Privacy Policy

Last updated 8 October 2026

1. Scope

This policy covers cudan360.com. We process personal data in line with Vietnam’s Decree 13/2023/ND-CP on personal data protection.

2. What we collect

• “Send a partnership request” form: your name, organisation, role, phone number, email, project of interest and message.
• AI assistant: the questions asked and the answers given (the question log has no names or contact details). The chat history is kept in your browser for up to 14 days.
• AI assistant memory: so the assistants on *.cudan360.com sites (home page, hello.cudan360.com, the consultant portal, the Giỏ hàng BĐS app) recognise you and help you seamlessly, your browser keeps a random visitor code (cookie c360vid, 400 days, renewed each visit), and we store with it a short memory note the assistant writes from what you share (for example the name you go by, your role, which project you sell, what you were shown) and the sites you chatted on. The note never holds phone numbers, emails, passwords or ID numbers. If you leave your phone number through the assistant, the note is linked to it so we can keep helping you on another device. On signed-in pages the note is kept separately per account.
• Contact left through the AI assistant: the name and phone number you type into “Để lại liên hệ” (with a consent box), plus the questions you asked, so our team can help with what you need.
• Technical: your IP address is used briefly to prevent spam and limit requests, and is deleted within 24 hours. If Google Analytics is enabled, the site uses cookies for anonymous visit statistics.
• Consultant links: when you open the site from a consultant’s personal link (cudan360.com/r/…), your browser stores that consultant’s code, when it was recorded and a random visitor code in a 90-day cookie shared by *.cudan360.com sites. During that time the pages you view on cudan360 are recorded with the time spent and how far you scrolled, the buttons and links you tap (never what you type into fields), your device type and an approximate city from your IP address (the IP is not stored, no GPS is used), kept for 90 days, and any request you send (with your phone number) is assigned to the consultant who referred you. That consultant can see what you sent, the pages you viewed with that activity, is told when you come back, and the questions you asked the AI assistant on the project sites, so they can advise you better. You can clear your browser cookies at any time.
• Photo and video tools (video download, photo editing, listing covers, collages): your photos are processed on your own device and never uploaded (for video download our server fetches the file from the source site for you and keeps nothing). We record usage against the visitor code c360vid: which tool, which action (opening, downloading, saving…), the options chosen (frame, template, font…), the time, your device type and an approximate city; never the photos, video links or text you type (such as the name or phone on a watermark). If you are a signed-in consultant, usage is linked to your account and you can save “looks” (watermark style, logo, font, layout) to your account to reuse on other devices.

3. Why we use it

• To get back to you about your partnership request.
• To improve the site and the quality of the AI assistant’s answers.
• To protect the service from spam and abuse.

We don’t sell personal data, and we won’t use your form details for anything else without your consent.

4. Who processes it

Data is stored and processed by our service providers: Supabase (database), Vercel (web hosting), Anthropic (generating AI answers; receives the question text and the assistant’s short memory note), Telegram (internal alerts to our team about new requests) and Google Analytics (statistics). Their servers may be located outside Vietnam.

5. How long we keep it

• Partnership requests: up to 24 months after our last contact, or until you ask us to delete them.
• Questions sent to the AI assistant: up to 12 months.
• Tool usage: up to 12 months. Saved looks: until you delete them or the account is deleted.
• AI assistant memory notes: up to 1,080 days after your last chat, then deleted automatically; or until you ask us to delete them.

6. Your rights

You can access, correct or ask us to delete your data, or withdraw your consent at any time. Withdrawing consent doesn’t affect processing that already took place.

7. Contact

To exercise these rights or ask about this policy, send a request through the partnership form on the home page and mention “Personal data”. We reply within 72 working hours.

Project sites at projectname.cudan360.com compile developer documents for reference only and handle data under the same principles.