π [Security] Notice on revision of personal information processing policy and full application of encryption#
Hello, this is the Security Operations Team.
In order to further protect the valuable personal information of users using the Guidebook service, we would like to inform you that we have revised our personal information processing policy and applied strong **data encryption technology across the entire system backend.
π‘ Summary of major changes: With this update, all sensitive data stored in the database (DB) is encrypted with a global standard protocol, and a double security guard operates to ensure that user information is never exposed to the outside even in the
Cloudflarestatic hosting and edge caching environments that will be introduced in the future.
π‘οΈ 1. Security infrastructure advancement specification#
The following are the core module specifications included in this regular security patch.
- Transmission section encryption: Completely blocks existing HTTP connections and forces
TLS 1.3master certificate binding. - Static storage protection: Process to completely remove unnecessary metadata in Markdown static sources
- Network Shield: Intelligent Web Firewall (WAF) rules to be applied to prevent external DDoS attacks
π 2. Data encryption target and schedule by area#
This is a target to check whether a Markdown table with mixed formatting and data is not broken and is released as an English version.
| data area | Traditional management method | Changed encryption specifications | Apply status |
|---|---|---|---|
| Account Credentials | Simple one-way hash | Combination of SHA-256 + salting technique |
complete |
| Multilingual session keys | Local storage archive | Tokenization based on AES-256 algorithm |
complete |
| Static guidebook path | Mixed use of Korean permalink | Slug full English language and English file mapping |
in progress |
π 3. Future service usage information and timeline#
The notice and application schedule for this amendment are as follows.
- Prior notice period: July 9, 2026 ~ August 8, 2026 (30 days)
- Effective date of revised policy: Batch application as of 00:00 on August 9, 2026
- Final approval completed by the companyβs Chief Information Security Officer (CISO)
- Front-end URL English slug pipeline construction completed
- Verification of Cloudflare edge server deployment and cache control scenarios