


Core Technology: Invisible Watermark
Key Features of LAB Guard
1. Serverless
No server required for watermark generation and detection (operates even in isolated or classified environments without network access)
2. High Robustness and Detection Rate
Maintains a high watermark detection rate even after transformations such as compression, cropping, and resizing (significantly superior to competitors)
3. Modular Architecture
All LAB Guard products are provided in modular form, making it easy to integrate with existing solutions


From creating to applying invisible watermark
STEP 01. Generation
Data is encoded into a unique code to create a 256*256 pixel-sized invisible watermark image.
* No server communication is required for watermark generation
STEP 02. Application
The invisible watermark image is layered seamlessly on top of the screen and printout, leaving no gaps.
STEP 03. Detection
The unique code of the invisible watermark is detected using a dedicated verification module.
* No server communication is required when detecting or scanning the watermark
STEP 04. Verification
The detected unique code is used to verify the embedded data.
Introduction to LAB Guard's Key Products
LAB Guard offers various security solutions utilizing the invisible watermark technology and even provides a verification module.
LAB Guard-M
Mobile Security
- #Mobile Screen Leakage
- #SDK
- #Application
Applying the invisible watermark to the mobile device screen to track user information when it is leaked through Nth-generation captures, screenshots, and more.
See DetailsLAB Guard-S
Screen Security
- #Capture and Leakage Aftermath
- #Post-Tracking
- #Local & VDI
We apply the invisible watermark to the user's monitor screen to trace user information when capturing screenshots or leaks.
See DetailsLAB Guard-P
Printout Security
- #Printout
- #Copying, Tampering, Graffiti
- #Intensity Control
Automatically layering invisible watermark during printing to track user information in case of copying, tampering, or graffiti upon output.
See DetailsLAB Guard-F
File Security
- #File Security
- #Image
- #Video
Embed an invisible watermark containing user information in files to trace user information in case of leakage.
See DetailsLAB Guard-W
Web Security
- #Web Interface
- #SDK
Apply an invisible watermark to the top of web pages to trace information in case of leaks from screenshots or recordings.
See DetailsLAB Guard Tracer
Dedicated Verification Module
- #User Information Verification
- #Invisible Watermark Code
The dedicated verification module detects and verifies the code of the invisible watermark to identify user information.
See Details
Partner Companies That Chose LAB Guard
Leading domestic partners are integrating our module, creating new value together with us.
Certified Technology
Our core technology, the invisible watermark, holds various patents and certifications both domestically and internationally.
- 13 Domestic patents registered
- 5 Domestic patents filed
- 4 US patents registered
- 1 Chinese patent registered
- 1 Japan patent registered
- Venture Enterprise Certification
- Registered with the Public Procurement Service's Venture Nara program
- LAB GUARD–M (ver.1.0) GS certification acquired
- Recipient of the Ministry of Science and ICT Minister's Award
LAB Guard featured in the press
You can discover various and exciting news about LAB Guard.
- 보도자료
스냅태그, 'eGISEC 2025' 참가
- 보도자료
스냅태그-북아이피스, 쏠북의 디지털 콘텐츠 보안 위한 기술 계약 체결
- 보도자료
스냅태그, THE VISTA 포럼에서 비가시성 워터마크 기술과 전망 발표
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