DaeHwan Chun (전대환) (the "operator") runs AI News Briefing at dailyaithread.com (the "briefing"). This page explains how subscriber information is handled, as required by Korea's Personal Information Protection Act. The Korean version is the governing text.
In short
- We collect your email address, plus the language, time zone and sign-up source needed to send it properly.
- We use it only to send the briefing. We never sell or share it.
- You can unsubscribe in one click from any email, and we delete your details 30 days later.
- Storage and delivery use services in Japan and the US (see section 5).
1. Why we process it
- Sending the briefing: the daily briefing, weekly synthesis and monthly report you signed up for.
- Managing your subscription: the confirmation email, one reminder if you haven't confirmed, and unsubscribing.
- Delivery quality: cleaning up bounced addresses and checking that emails arrive.
- Counting sign-up sources: which links new subscribers came from, in aggregate.
We do not send ads or promotional emails. If we ever send an edition that carries ads, it will go only to people who opted in separately; everyone else keeps getting the ad-free edition.
2. What we collect and on what basis
Nothing here relies on consent. Each item has its own legal basis under the Act, listed separately as Article 22(3) requires.
| Item | How we get it | Used for | Legal basis |
|---|---|---|---|
| Email address | You enter it when signing up | 1-1, 1-2, 1-3 | Providing the service you requested (Art. 15(1)4) |
| Email language (Korean/English) | Automatically, from the page you signed up on | 1-1 | Same as above |
| Time zone | Automatically, from your browser | 1-1 | Same as above |
| Sign-up, confirmation and unsubscribe times | Recorded automatically | 1-2 | Same as above |
| Whether an email was opened or a link clicked | Automatically | 1-3 | Same as above |
| Sign-up source tag (e.g. a share-link code) | Automatically, only if the link carries one | 1-4 | The operator's legitimate interest (Art. 15(1)6), used only in aggregate and never for individual marketing |
A source tag may contain a code pointing to the subscriber who shared the link. The code is a one-way transform of their email address and is used only to count how many people each share brought in.
3. How long we keep it
| Whose data | Kept until |
|---|---|
| Active subscribers | You unsubscribe |
| People who unsubscribed | Deleted 30 days after unsubscribing |
| Sign-ups never confirmed | Deleted 90 days after signing up |
Deletion is permanent, in both the database and the email service. Delivery logs kept by the email service follow that provider's retention policy.
4. Service providers
The briefing is run by one person, so storage and delivery rely on these providers.
| Provider | What they do |
|---|---|
| Supabase | Stores subscriber records (database) |
| Resend | Sends email and handles bounces and unsubscribes |
| Vercel | Hosts the site and the sign-up form |
| Anthropic | Cloud environment that runs the daily sending job |
5. Transfers outside Korea
These providers' servers are outside Korea, so your information is transferred abroad. Because the transfer is needed to provide the service you asked for, it is made without separate consent and disclosed here (Art. 28-8(1)3). All transfers are encrypted.
| Recipient (contact) | Country | Items | When | Purpose | Retention |
|---|---|---|---|---|---|
| Supabase Pte. Ltd. (privacy@supabase.com) | Japan (Tokyo) | Everything in section 2 | At sign-up and each send | Storage | As in section 3 |
| Plus Five Five, Inc. (Resend) (support@resend.com) | US; sending servers in Japan (Tokyo) | Email, language, source tag, opens and clicks | Each send | Email delivery | As in section 3 |
| Vercel Inc. (privacy@vercel.com) | US | Email, language and time zone entered at sign-up | At sign-up | Processing the sign-up | Not stored after processing |
| Anthropic PBC (privacy@anthropic.com) | US | Email, language | During the daily sending job | Running the job | Processed only during the job, not stored |
If you don't want your information transferred abroad, you can unsubscribe. The briefing can't be sent without these providers, so there is no way to refuse the transfer alone.
6. Sharing with third parties
We do not give subscriber information to anyone else, including advertisers or sponsors.
7. Your rights
You can ask for any of the following at any time. Email hello@dailyaithread.com and we will handle it and reply within 10 days.
- Access, correction, deletion, or a stop to processing
- Unsubscribing: press "Unsubscribe" at the bottom of any email. No login needed.
8. Cookies and similar technologies
- Cookies: one cookie remembers your light/dark theme. It is not used to identify you, and you can delete it in your browser.
- Browser storage: your language choice and the sign-up source tag (cleared when you close the tab) are kept only in your browser.
- Visit statistics: Vercel Web Analytics counts page views without cookies, in aggregate only.
- Server logs and fonts: Vercel, which hosts the site, may log IP addresses for security and troubleshooting. Fonts load from Google Fonts, which may receive your IP address.
9. How we protect it
- Only the operator holds the database and email-service keys, and they are never kept in the public repository.
- Everything is sent over encrypted connections (HTTPS).
- Confirmation and unsubscribe links use signatures that can't be forged.
- Information we no longer need is deleted on schedule (section 3).
10. Privacy officer
- Name: DaeHwan Chun (전대환), operator
- Contact: hello@dailyaithread.com
11. Where to complain
You can report or seek advice on privacy violations from these Korean authorities.
- Personal Information Infringement Report Center: 118 (in Korea), privacy.kisa.or.kr
- Personal Information Dispute Mediation Committee: 1833-6972, www.kopico.go.kr
- Supreme Prosecutors' Office: 1301 (in Korea), www.spo.go.kr
- Korean National Police Agency: 182 (in Korea), ecrm.police.go.kr
12. Changes to this policy
This policy applies from November 13, 2026. We will post any change here 7 days before it takes effect, and email subscribers if the change is to their disadvantage.