Privacy Policy

1. Data controller

Datalink Core is the controller for personal data collected through this website and related educational programs.

Street: 56-11, Gisan ri 7, Ildong-myeon; City: Pocheon-si; State/province/area: Gyeonggi-do; Phone number: +82-1-885-8159; Country calling code: +82; Country: Korea;

Email: support@datalink-core.digital

2. Data we collect

• Contact form fields: name, email, optional topic, message content.
• Enrollment and billing details when you purchase a seat through confirmed offline or third-party channels.
• Technical logs: IP address, browser type, pages visited, approximate timestamps.
• Cookie and similar technology data as described in the Cookie Policy.

Please do not submit seed phrases, private keys, or recovery secrets through forms. We do not need them to answer educational questions.

3. Purposes and legal bases

We process data to respond to inquiries, deliver courses, improve the site, meet legal obligations, and — where required — based on consent for non-essential analytics cookies.

4. Retention

Contact messages are retained up to 24 months unless a longer period is needed for an ongoing matter. Enrollment records are retained for the period required by Korean accounting and consumer rules, typically up to five years for transaction evidence. Analytics data is retained in aggregated form where practicable.

5. Sharing

We use service providers for hosting, email, and (if enabled) analytics. They process data on our instructions. We do not sell personal data.

6. International transfers

If tools host data outside Korea, we take steps appropriate under applicable law, such as contractual safeguards with providers, and we limit transfers to what is needed to operate the site and courses.

7. Your rights

Subject to Korean law and other applicable rules, you may request access, correction, deletion, or restriction of processing, and you may withdraw consent for optional cookies. Contact support@datalink-core.digital. You may also lodge a complaint with a competent authority.

8. Security

We apply reasonable technical and organizational measures. No method of transmission or storage is perfectly secure.

9. Children

Programs are intended for adults. If you believe we collected data from a child inappropriately, contact us to delete it.

10. Changes

We may update this Privacy Policy by posting a new version with a revised date.