LeakCheck Professional is a Windows security tool that checks passwords and email addresses against known data breaches. It helps individuals and businesses identify compromised credentials early, review affected accounts, and take action before leaked information is misused.
The software uses k-anonymity to check passwords without transmitting them as plain text. It also stores data locally with Windows DPAPI encryption and provides automatic background monitoring for new breaches. Users who need another privacy-focused utility can explore ASCOMP Secure Eraser Professional for securely deleting sensitive data.
Characteristics of LeakCheck Professional
- Checks passwords against millions of known data breaches
- Scans email addresses for compromised online accounts
- Uses k-anonymity for privacy-friendly password checks
- Never transmits stored passwords as plain text
- Encrypts local data through Windows DPAPI
- Displays safe and compromised entries separately
- Shows breach names, titles, and discovery dates
- Automatically monitors passwords and email addresses
- Provides notifications when new breaches are detected
- Supports password imports from compatible web browsers
- Allows commercial use with the Professional Edition
What’s New in LeakCheck Professional 1.002
- Updates request limits for email-address breach checks
- Improves sorting of monitored email accounts
Official Website: LeakCheck Professional Official Website
System Requirements
- Operating System: Windows 7, 8, 8.1, 10, or 11
- Processor: Intel-compatible CPU or Windows on ARM
- RAM: 2 GB minimum, 4 GB recommended
- Storage: 50 MB of free disk space
- Internet: Required for breach checks and automatic monitoring
Open Installation Guide & Frequently Asked Questions
Build Highlights
Software: LeakCheck Professional
Type: Official Windows Installer (Silent RePack)
Status: Clean & Tested
Size: ~24.55 MB installer
