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. Once 30 days have passed since deletion, account labels remaining in audit logs are replaced with a non-identifying number.
Processors
Email delivery: Google (Gmail). Social login: Google and NAVER (if the member chooses them).
Contact
Send any questions about personal information to dnrobotics23@gmail.com.
Your data rights
Members can view and update their information, change notification preferences, or delete their account from their profile. Additional access, correction, or deletion requests can be submitted by email.
Security measures
Passwords are stored using one-way hashing. We protect personal data through separated access permissions, secure connections, and operational audit logs.