Collection and use of personal information

Effective November 2026 · Version 2026-11

What we collect

Required: email, password (stored encrypted), and the account identifier when you use social login. Optional: display name and mobile phone number.

Why we use it

To identify members and log them in, verify email and recover passwords, and send Q&A answer and notice notifications.

How long we keep it

Kept for 30 days after you delete your account, then deleted. Member and staff notifications are kept for 90 days, and admin audit logs for one year.

Processors

Email delivery: Resend. Social login: Google and NAVER (if the member chooses them).

Contact

Send any questions about personal information to dnrobotics23@gmail.com.