KEY-SHIELD Lightweight Standalone Endpoint Data Protection Suite New Launched: Serverless, Out-of-the-Box Data Leak Prevention for Industrial and SMB Scenarios
Modular Licensing · On-Premise Operation · Low TCO · Built for Industrial Terminals and Small Teams
JUNKAI-TECH are pleased to officially launch our newly KEY-SHIELD Lightweight Standalone Endpoint Data Protection Suite, a purpose-built on-premise security solution for decentralized endpoint environments. The suite integrates four core capabilities—driver-level transparent encryption, port access control, local backup, and web behavior management—into a single, serverless architecture.

Unlike traditional centralized DLP solutions that require on-site servers, gateways, and dedicated IT staff, our product runs entirely on individual endpoints, with setup completed in 5 minutes per device. It is licensed via a single hardware U-key that supports modular feature selection, drastically lowering the barrier to data security for industrial facilities and small-to-micro businesses.
Four Modular Capabilities: Select Only What You Need, No Wasteful Overhead
The suite adopts a modular licensing model. Users can select single or any combination of modules, all activated and managed via one hardware U-key. There is no need to pay for unused features, and upgrades are available at any time with proportional pricing.
Driver-Level Transparent Encryption
Powered by kernel-level driver technology, this module encrypts files automatically at the system level without altering file formats, extensions, or user workflows. Users open and edit files normally with a double-click, with no extra steps required.
When files are copied to unauthorized USB drives, external devices, or network locations, they remain encrypted and unreadable on any device without a valid U-key. It supports all file formats, including design drawings, financial records, source code, and other sensitive assets.
2. Endpoint Port Access Control
Granular control over all peripheral interfaces including USB, optical drives, serial ports, Bluetooth, and printers. Three permission modes are available: Block, Read-only, and Whitelist, to precisely restrict unauthorized data export via physical devices, while keeping standard peripherals like mice and keyboards fully functional.
3. Local Desktop Backup
Automatically backs up critical files and desktop data based on customizable schedules, file types, and target paths. Backups are stored in encrypted form locally, with one-click recovery functionality to protect against ransomware, accidental deletion, and hardware failure. All data stays on-premise with no cloud upload required, preserving full data privacy.
4. Lightweight Web Behavior Management
Kernel-level web filtering runs entirely on the local device—no gateway, no proxy server required. It supports website whitelists and blacklists to block malicious sites and high-risk external links, controls file uploads to webmail, cloud storage, and social platforms, and logs web activity for audit purposes. It delivers network-channel data leak prevention in a standalone endpoint environment.
Core Advantage: True Serverless On-Premise Architecture, Out-of-the-Box Deployment
Unlike traditional centralized control solutions that require server hardware, network gateways, and a separate management console, our KEY-SHIELD DLP product operates fully on each individual endpoint with zero infrastructure overhead.
No server or gateway required: No additional hardware or platform deployment needed. Runs independently on each device, and works fully in air-gapped and offline environments.
Ultra-simple setup: One-click installation, with basic policy configuration completed in 5 minutes. No dedicated IT staff required for deployment or maintenance.
Single U-key unified licensing: One hardware U-key activates all purchased modules. Plug-and-play authorization, no hardware binding to the device—works across device replacements and system reinstalls.
100% offline capable: All authorization checks and feature operations run locally. No internet connection required for activation or functionality, ideal for closed and restricted networks.
Target Customer Segments
▶ Industrial Offline Terminals
Purpose-built for air-gapped devices on factory floors, test and measurement equipment, medical devices, and surveying instruments. Fully compatible with Windows 7, 10, and 11, designed for stable long-term operation in industrial environments without modifying existing system architectures.
▶ Small & Micro Professional Teams (3–20 Users)
Ideal for design studios, accounting firms, small R&D teams, law offices, and consulting agencies. Deliver full endpoint data leak prevention, behavior control, and backup without the cost of servers or dedicated IT personnel. Total cost of ownership is 1/5 to 1/10 that of traditional enterprise DLP solutions.
▶ Individual Professional Users
High-value perpetual license option for freelance designers, independent developers, consultants, and other individual professionals. Protects intellectual property and sensitive personal data with hardware-level anti-tampering authorization. One-time purchase, lifetime use, fully offline capable.
Lower Total Cost of Ownership, Lightweight Long-Term Maintenance
Perpetual license, no annual fees: One-time payment for permanent use. No recurring subscription costs, no mandatory annual maintenance fees.
Minimal operational overhead: Stable, reliable operation with automatic system compatibility updates. No dedicated maintenance staff required, reducing long-term operating costs.
No hidden costs: No extra server, gateway, or implementation fees. Full cost transparency and predictability.
Lightweight iteration: Regular updates for system compatibility and emerging threat protection, delivered via lightweight patches with no disruption to daily operations.
The KEY-SHIELD Lightweight Standalone Endpoint Data Protection Suite is now available with a 45-day full-feature free trial. Users can download the installer via contact our official email: info@junkai-tech.com to experience full on-premise data protection capabilities. We will continue to iterate and optimize the product to deliver lightweight, cost-effective data security solutions for more scenarios.