WFS Klient - Windows Firewall
Lightweight firewall client that proactively protects your Windows computer against cyber threats
- 201 Global Sensors
- <1% CPU Usage
- 50MB RAM
- Zero Configuration
Powerful Protection, Zero Hassle
WFS Klient runs silently in the background while keeping your Windows computer safe
Global Threat Intelligence
Receives IP blocklists from 201 sensors across 50+ countries monitoring real-time cyber threats worldwide.
Proactive Blocking
Automatically blocks malicious IPs before they can reach your computer through Windows Firewall integration.
Ultra-Lightweight
Uses less than 1% CPU and only 50MB RAM - runs silently without slowing down your system.
Automatic Updates
Continuously updates its blocklists with the latest threat intelligence without manual intervention.
Privacy-Focused
Only receives IP blocklists - does NOT share your computer's data or activity back to the network.
Set and Forget
Runs in the background with zero configuration required - install once and you're protected.
How WFS Klient Works
Simple protection in four steps
Global Monitoring
Our worldwide network of 201 sensors monitors and collects data about new threats in real-time across 50+ countries.
AI Analysis
Advanced algorithms analyze millions of data points to identify and categorize malicious IPs from actual attacks.
Automatic Delivery
WFS Klient automatically downloads updated IP blocklists and applies them to Windows Firewall without disrupting your work.
Proactive Blocking
Malicious IPs are blocked at the firewall level before they can establish connections or launch attacks against your computer.
Frequently Asked Questions
Answers to common questions
What is WFS Klient?
WFS Klient is a lightweight Windows desktop application that enhances your computer's security by receiving and applying IP blocklists from the WF SecurityCloud global sensor network. It integrates with Windows Firewall to proactively block malicious IP addresses identified from real attacks worldwide.
Does WFS Klient share my computer's data?
No. WFS Klient only receives IP blocklists from the sensor network - it does NOT share your computer's data, activities, or any attack information back to the network. Your privacy is completely protected while you benefit from global threat intelligence.
How much system resources does it use?
WFS Klient is extremely lightweight - it uses less than 1% CPU and only around 50MB of RAM. The application runs silently in the background and won't slow down your computer or interfere with your work.
How often are blocklists updated?
WFS Klient automatically checks for and downloads updated IP blocklists regularly as our 201 global sensors identify new threats. This ensures your Windows Firewall is always protecting you against the latest malicious IPs identified across the network.
Does it require configuration?
No configuration is required. WFS Klient works out of the box - simply install it and it will automatically start protecting your computer. It runs in the background with automatic updates, requiring zero ongoing maintenance from you.
What Windows versions are supported?
WFS Klient supports Windows 10 and Windows 11 (both Home and Pro editions). It integrates seamlessly with Windows Firewall to provide enhanced protection without requiring additional software or third-party firewalls.
Protect your Windows computer today
Join the global WF SecurityCloud network and get proactive protection powered by 201 sensors across 50+ countries.