Skip to main content
데브파이브
Dev Request
Solutions
Portfolio
News
Inquiry
Website Screen (Security Information Service) Logo: Security Book Top Search: Complete dropdown | Enter search terms such as company name, service name, etc. Right button: Register a case the main headline Is your information secure? The root cause of repeated security incidents and It contains solid precautions to protect tomorrow. Subtext: Use real-world examples and data to identify the causes of security incidents You can see practical precautions for individuals and businesses. statistical indicators Indicator value Total number of accidents 1,540+ 128 million cumulative damages+ Corporate average loss of 4.53 billion Preventable rate 92%
Security Log

Security Log is an open-source security incident archive that records publicly known security incidents and personal data breach cases.

Instead of treating repeated security incidents as fear-driven news, the project structures real cases so people can understand what happened, what failed, and how similar mistakes can be prevented.

Anyone can submit a security incident through the website, and each submission goes through a GitHub Issue and Pull Request review flow before being reflected on the site. The code, records, and contribution process are all designed to remain open.

Production Period2026. 04 - 2026. 05
ClientDevfive
TechnologiesNext.js, React, TypeScript, Devup UI, Bun, GitHub Actions
Visit Site
Service
Preview
Top Header Logo: Security Book Search: Complete dropdown | Enter search terms such as company name, service name, etc. Right: Register Case | 🌐 | ☀ Hero Section Is your information secure? The root cause of repeated security incidents and It contains solid precautions to protect tomorrow. Use real-world examples and data to identify the causes of security incidents You can see practical precautions for individuals and businesses. statistical indicators Indicator value Total number of accidents 1,540+ 128 million cumulative damages+ Corporate average loss of 4.53 billion Preventable rate 92% Accident cause statistics By type of accident statistics, we can identify the main flows and causes of security threats in Korea. Cause ratio 52% of hacking Insiders 12% Lack of management 27% Technical defect 6% unknown 3% (With Donut Chart) Banner (DEVFIVE ADVERTISING) Dev Five, a state-certified company, solves one-stop from planning to development. Home page, app production If you don't know how to start? Award/Selection Badge: - Selection of the Best Companies in the Preliminary Startup Package - Selection of a project to support sustainable growth of the science and technology donation software - Goyang Industrial Promotion Agency Wins Academy of Innovative Start-ups in a row Security Incident List You can check the size and cause of the scale by collecting security accidents that actually occurred in Korea. Filters tab: Full | Hacking | Insiders | Management Defects | Technical Defects | Unknown | View More Cases > Incident card (3×3 grid) Type Damage Scale Date Company Tag Insiders About 12 million 2026.04.07 Company Name #Accident Summary #VoicePhishing Hacking About 5 million 2026.04.07 Company Name #Accident Summary #VoicePhishing #Administrator Page Unauthorized Access Insiders About 12 million 2026.04.07 Company Name #Accident Summary #VoicePhishing Poor management - 2026.04.07 Company name #Accident Summary #VoicePhishing #Administrator Page Unauthorized Access Unknown company name 12,2026.04.07 #AdministratorPageUnauthorizedAccess Hacking - 2026.04.07 Company Name #Accident Summary #VoicePhishing #Administrator Page Unauthorized Access Technology defect approximately 10 million 2026.04.07 Company name #VoicePhishing #Administrator Page Unauthorized Access Hacking About 10 million 2026.04.07 Company Name #Accident Summary #VoicePhishing #Administrator Page Unauthorized Access Hacking About 10 million 2026.04.07 Company Name #Accident Summary #VoicePhishing #Administrator Page Unauthorized Access Useful Services Section Useful services to protect my information You can check and respond through the official channel. Service Name Description Find my information leaked Personal information leakage confirmation service that allows you to check whether my information has been leaked Personal Information Infringement Reporting Center A reception window for reporting and counseling on cases of infringement, such as leakage and misuse of personal information A central administrative agency responsible for overseeing the privacy policy of the Personal Information Protection Committee and improving law enforcement and systems Footer Contact and comment submission: contact@devfive.kr Logo: DEVFIVE 저작권: Copyright © DEVFIVE. All Rights Reserved.
Hover over the screen!
Client Requirements
& Project Direction
Through client interviews and consultations we derived the project's core requirements, and based on those insights we designed it around five areas that needed improvement from user experience and brand perspectives.
1.
Build an archive for collecting public security incidents and personal data breach cases
2.
Design an information structure for browsing cases by cause, impact scale, and tags
3.
Implement an open-source contribution flow where anyone can submit incident cases
4.
Strengthen record reliability through a GitHub Issue and PR-based review process
5.
Provide a security incident archive focused on learning rather than blame
Typography
& Color System
We established a systematic color system with brightness contrast that considers users' visual comfort, and designed easily extensible typography and shared components to deliver a consistent brand experience.Header typo 폰트 굵기: ExtraBold · Bold · SemiBold · Medium · Regular Main font Aa — Pretendard typography scale h1 — 40px Your information is Is it safe? Title — 20px Your information is Is it safe? Body — 16px Your information is Is it safe? Caption — 14px Your information is Is it safe?color Main Color Palette Color HEX Application Blue/Purple #3A70FF Primary Light lavender/white #EFEDFF Primary Bg Pink/Magenta #E21F6A Secondary Grayscale HEX Location #FFFFFF Left (White) #6B7080 Center (Gray) #000000 Right (Black)Header typo 폰트 굵기: ExtraBold · Bold · SemiBold · Medium · Regular Main font Aa — Pretendard typography scale h1 — 40px Your information is Is it safe? Title — 20px Your information is Is it safe? Body — 16px Your information is Is it safe? Caption — 14px Your information is Is it safe?color Main Color Palette Color HEX Application Blue/Purple #3A70FF Primary Light lavender/white #EFEDFF Primary Bg Pink/Magenta #E21F6A Secondary Grayscale HEX Location #FFFFFF Left (White) #6B7080 Center (Gray) #000000 Right (Black)
Typography
& Color System
We established a systematic color system with brightness contrast that considers users' visual comfort, and designed easily extensible typography and shared components to deliver a consistent brand experience.Header typo 폰트 굵기: ExtraBold · Bold · SemiBold · Medium · Regular Main font Aa — Pretendard typography scale h1 — 40px Your information is Is it safe? Title — 20px Your information is Is it safe? Body — 16px Your information is Is it safe? Caption — 14px Your information is Is it safe?color Main Color Palette Color HEX Application Blue/Purple #3A70FF Primary Light lavender/white #EFEDFF Primary Bg Pink/Magenta #E21F6A Secondary Grayscale HEX Location #FFFFFF Left (White) #6B7080 Center (Gray) #000000 Right (Black)Header typo 폰트 굵기: ExtraBold · Bold · SemiBold · Medium · Regular Main font Aa — Pretendard typography scale h1 — 40px Your information is Is it safe? Title — 20px Your information is Is it safe? Body — 16px Your information is Is it safe? Caption — 14px Your information is Is it safe?color Main Color Palette Color HEX Application Blue/Purple #3A70FF Primary Light lavender/white #EFEDFF Primary Bg Pink/Magenta #E21F6A Secondary Grayscale HEX Location #FFFFFF Left (White) #6B7080 Center (Gray) #000000 Right (Black)
Top Header Logo: Security Book Search: Complete dropdown | Enter search terms such as company name, service name, etc. Right: Register Case | 🌐 | ☀ Page title Security Incident List You can check the size and cause of the scale by collecting security accidents that actually occurred in Korea. Filter tab: Full (selected) | Hacking | Insider | Poor administration | Technical defect | Unknown Sorted: Latest order ▽ List of incident cards Type Damage Scale Date Company Tag Insiders About 12 million 2026.04.07 Company Name #Accident Summary #VoicePhishing Hacking About 5 million 2026.04.07 Company Name #Accident Summary #VoicePhishing #Administrator Page Unauthorized Access Insiders About 12 million 2026.04.07 Company Name #Accident Summary #VoicePhishing Lack of management About 882,026.04.07 Company name #Accident Summary #VoicePhishing #Administrator Page Unauthorized Access About unknown company name 12,2026.04.07 #Incident Summary #Administrator Page Unauthorized Access Hacking About 212,026.04.07 Company Name #Accident Summary #VoicePhishing #Administrator Page Unauthorized Access Technology defect approximately 10 million 2026.04.07 Company name #VoicePhishing #Administrator Page Unauthorized Access Hacking About 10 million 2026.04.07 Company Name #Accident Summary #VoicePhishing #Administrator Page Unauthorized Access Hacking About 10 million 2026.04.07 Company Name #Accident Summary #VoicePhishing #Administrator Page Unauthorized Access Hacking About 5 million 2026.04.07 Company Name #Accident Summary #VoicePhishing #Administrator Page Unauthorized Access Hacking About 5 million 2026.04.07 Company Name #Accident Summary #VoicePhishing #Administrator Page Unauthorized Access About unknown company name 12,2026.04.07 #Incident Summary #Administrator Page Unauthorized Access About unknown company name 12,2026.04.07 #Incident Summary #Administrator Page Unauthorized Access Hacking About 212,026.04.07 Company Name #Accident Summary #VoicePhishing #Administrator Page Unauthorized Access Hacking About 10 million 2026.04.07 Company Name #Accident Summary #VoicePhishing #Administrator Page Unauthorized Access Hacking About 10 million 2026.04.07 Company Name #Accident Summary #VoicePhishing #Administrator Page Unauthorized Access Hacking About 10 million 2026.04.07 Company Name #Accident Summary #VoicePhishing #Administrator Page Unauthorized Access Advertising Banner (DEVFIVE) Dev Five, a state-certified company, solves one-stop from planning to development. Home page, app production If you don't know how to start? Award/Selection Badge: - Selection of the Best Companies in the Preliminary Startup Package - Selection of a project to support sustainable growth of the science and technology donation software - Goyang Industrial Promotion Agency Wins Academy of Innovative Start-ups in a rowTop Header Logo: Security Book Search: Complete dropdown | Enter search terms such as company name, service name, etc. Right: Register Case | 🌐 | ☀ Page title Case Registration Please share the case that is not registered in the security book. Input Form Corporate name Please enter your company name. Date of accident 📅 yyyy-mm-dd nation Select ▽ the extent of the damage Please enter a number. + Select ▽ the cause of an accident Please select the first cause of the incident and the key inflow path. Radio button: ⦿ hack (optional) | ○ Insider | ○ Poor administration | ○ Technical defect | ○ Unknown Leak Breakdown Name, ID, month/date of birth Secondary damage details (selected) Name, ID, month/date of birth Timeline (selected) Please record the development process from accident recognition to end in order. Enter content + 📅 yyyy-mm-dd + add + Timeline (selected) Please write down the underlying cause and vulnerability of the accident. Enter content + Add + Prevention and Lessons (optional) Please write down prevention and lessons to prevent a recurrence. Type a Category Individual [Enter content] [Add +] Enterprise [Enter] [Add +] Bottom button Register previouslyTop Header Logo: Security Book Search: Complete dropdown | Enter search terms such as company name, service name, etc. Right: Register Case | 🌐 | ☀ Accident Details (Main) Badge: Hacking · Approximately 10 million | 2026.04.07 · (Shared) Corporate name Tag: #Accidentsummary #voicephishing #administrator page unauthorized access affected country Republic of Korea Leak Breakdown Name, ID, month/date of birth, address, contact information Secondary damage history Name, ID, month/date of birth, address, contact information Timeline Phase Date Estimated commencement of unauthorized access 2025-06-24 Abnormal Access Detection and First Recognition 2025-11-18 Official leak announcement & report received 2025-11-29 CEO Resignation and Further Response 2025-12-09 Police, official investigation, and discussion on regulation will proceed 2026-01 Cause analysis - Reclaiming the authority of quitters and insufficient token management - Unbuilt Abnormal Access Detection System Prevention and Lessons Individual: - In addition to ID and password, access is made using secure authentication methods such as one-time password (OTP) Companies: - Apply Multiple Authentication (MFA) - IP restrictions on external access / Firewall settings strengthened - Real-time monitoring of administrator access logs and alarm schemes - Documentation and periodic inspection of security operational procedures on the list Similar cases (right sidebar) Type Damage Scale Date Company Tag Hacking About 12 million 2026.04.07 Company Name #Accident Summary #VoicePhishing #Administrator Page Unauthorized Access Hacking About 8.2 million 2026.04.07 Company Name #Accident Summary #VoicePhishing #Administrator Page Access Hacking About 242,026.04.07 Company Name #Accident Summary #VoicePhishing Hacking about 820,260.04.07 Company Name #Accident Summary #VoicePhishing #Administrator Page Unauthorized Access Hacking About 10 million 2026.04.07 Company Name #Accident Summary #VoicePhishing #Administrator Page Unauthorized Access
Back to List

Take the for your business,

All you need is an idea. From the first consultation to launch, DevFive is by your side.
Contact Us Now
Quick Inquiry