Privacy Policy

How Laser Defense Lab ("this site") handles information about visitors and members. Every article can be read without signing in, and membership is optional.

1. Information collected

  • When you join: the email address of your Google account, a sign-in identifier, the time you joined, and the version of the privacy notice you agreed to
  • When you agree to the newsletter: whether you agreed, when, the version of the wording, and when you withdrew
  • When you email us: your email address and your message
  • Browser storage: your sign-in state and screen theme (light or dark). These stay in your browser and are used only to run the site.

2. Purpose of use

  • Identifying members and keeping them signed in
  • Sending the newsletter (only to members who agreed; sending has not started yet)
  • Replying to messages

3. Retention and deletion

  • Member information is kept until you leave, and is deleted at once when you do.
  • After you leave, a record of the Google sign-in link (email, identifier) may remain in the sign-in system (Supabase). To have it deleted too, email us and it will be deleted.
  • Messages are kept only as long as needed to reply and follow up, and are deleted on request.

4. Newsletter consent

  • The newsletter is optional. Joining and reading are not limited if you do not agree.
  • The check box starts empty. Only a box you tick yourself counts as consent.
  • The newsletter carries news of new articles on this site.
  • You can withdraw at any time on the "My account" page. Each consent or withdrawal is confirmed on screen right away.

5. Outside services and processing abroad

  • Supabase: sign-in and storage of member information
  • Google: sign-in (Google account)
  • Cloudflare: hosting of the site
  • These providers are based outside Korea, so information may be processed abroad while they provide their service.
  • Member information is never sold or given to third parties, except when the law requires it.

6. Your rights

  • Members can see their information, change newsletter consent and leave on the "My account" page.
  • You can ask to see, correct, delete or stop the processing of your information by email. Requests are handled promptly after checking.
  • People under 14 cannot become members.

7. Cookies and visit analytics

8. Privacy officer and contact

Privacy officer: the operator of Laser Defense Lab · [email protected]

Version privacy-2026-10-14-v1 · in effect from October 14, 2026 · changes are announced on this page first.

See also: Terms of Use · My account · Contact