Giveaway – LeakCheck Professional: Free License Key | Password & Email Data Breach Checker – for Windows
Check passwords and email addresses against millions of known data breaches. Get ASCOMP LeakCheck Professional with a License Key For free!
You can also get LeakCheck Professional with a Lifeitme Liecnse , 2 year Free upgrades and support at a disciunt of up to 75% OFF!
✔ Lifetime License. ✔ Free Product Updates ✔ 24×7 Customer Support ✔ 14-day Money-back Guarantee.
ASCOMP LeakCheck Professional Review at a Glance
Every day, millions of user credentials are exposed through data breaches across the web. Usernames, passwords, and email addresses are harvested and traded in dark corners of the internet, often without the account owner ever knowing. By the time the damage is done — unauthorized logins, identity theft, financial fraud — it is already too late to act. Most users remain unaware that their passwords have been circulating in public breach databases for months or even years, silently enabling attackers to compromise account after account.
LeakCheck Professional by ASCOMP is the answer to this growing threat. It is a dedicated Windows security application that puts data breach detection directly in your hands — fast, private, and local. Instead of relying on cloud-based portals or entering your credentials into unknown web forms, LeakCheck runs entirely on your PC and uses the industry-leading Have I Been Pwned (HIBP) database to check your passwords and email addresses against millions of known data leaks. With its professional-grade automatic background monitoring, you are notified the moment a new breach involving your credentials is detected — so you can act before attackers do.
What is LeakCheck Professional?
LeakCheck Professional is a Windows desktop application developed by ASCOMP Software, a company with over 25 years of experience and more than 10 million downloads across 190+ countries. It is specifically designed to help individuals and businesses protect their digital identity by continuously monitoring passwords and email addresses against the world’s largest publicly available breach database.
Unlike basic online checkers, LeakCheck performs all sensitive operations locally on your PC. Your passwords are never transmitted in plain text — instead, the software uses a k-anonymity technique, sending only a short, anonymized hash fragment to the HIBP API, ensuring that no one — not even ASCOMP — ever sees your actual password . All stored data is encrypted on your device using the Windows Data Protection API (DPAPI), bound to your personal Windows user account, so your credentials remain protected even if your device falls into the wrong hands .
LeakCheck Professional goes beyond the free Standard Edition by adding automatic background monitoring — the software runs silently in the background, checks your credentials at regular intervals, and immediately alerts you when a new data breach is detected. It also removes all advertisements and functional limitations, and permits commercial and business use under its license terms. Whether you are an individual protecting personal accounts or an IT professional securing business credentials, LeakCheck Professional delivers enterprise-level awareness in a simple, intuitive desktop application.
Key Benefits
LeakCheck Professional addresses real-world cybersecurity needs with a practical, privacy-first approach. Here are the most compelling reasons to choose it over alternative solutions:
- Complete privacy by design — your passwords are checked using k-anonymity, so your actual credentials are never transmitted, stored externally, or exposed during the checking process
- Real-time breach awareness — the Professional Edition’s automatic monitoring alerts you immediately when a new breach is detected, giving you a critical head start over attackers
- Actionable breach detail — for every compromised email address, LeakCheck displays the name, title, and date of each breach, so you know exactly which service was affected and when
- Unlimited password checks — unlike email checks which have daily rate limits, password checks are completely unlimited in both editions, allowing thorough auditing of all your credentials
- Local encrypted storage — all data is saved exclusively on your PC, encrypted via Windows DPAPI and tied to your Windows user account, preventing unauthorized access
- Business and commercial use — the Professional Edition license permits use in a business environment, making it suitable for small offices, IT departments, and professionals
- Broad Windows compatibility — supports Windows 7, 8, 8.1, 10, and 11, as well as Windows Server 2012, 2016/2019, and 2022/2025, ensuring deployment across virtually any Windows environment
- Intuitive dashboard — a clean, at-a-glance security overview separates safe from compromised entries, helping you instantly identify where action is needed without digging through logs
- Browser password import — easily pull in saved credentials from your browser for a comprehensive breach audit without manual data entry
- One-time payment, no subscriptions — purchase LeakCheck Professional for a single, one-time fee with no recurring charges, making it an exceptional long-term value
Features
Key Features
Below is a detailed breakdown of every major capability built into LeakCheck Professional, including sub-features that make it one of the most thorough breach-detection tools available for Windows:
- Secure Password Checking via k-Anonymity — your passwords are checked against the HIBP database using an anonymized hash fragment, never exposing your actual credential during transmission
- No plain-text transmission — only the first 5 characters of the SHA-1 hash are sent to the API, keeping your full password completely private
- Encrypted matching — all comparisons are performed locally after downloading matching hash ranges from the server
- Unlimited checks — password breach checks are not subject to any daily or per-minute rate limits
- Bulk list input — add multiple passwords at once using the list import feature for rapid mass auditing
- Browser import — import saved passwords directly from your browser for a full credential audit without manual entry
- Instant results — compromised passwords are flagged immediately upon check completion
- Email Address Breach Monitoring — check individual or multiple email addresses against the HIBP database to detect exposure in known data breaches
- Detailed breach reports — for each affected address, view the name, title, and date of every associated data breach
- Monitoring list management — add and manage up to 100 email addresses in the monitoring list
- Single-click checking — run a full check of all saved addresses in one action
- Rate-optimized API access — Professional Edition allows 10 requests per minute, up to 50 per day, versus the Standard Edition’s 3 per minute and 15 per day
- Automatic Background Monitoring (Professional Edition Exclusive) — the software runs silently in the background and continuously monitors your credentials without manual intervention
- Scheduled automatic checks — LeakCheck automatically re-checks passwords and email addresses at regular intervals
- Instant breach alerts — the application opens automatically and displays a notification as soon as a new data breach involving your credentials is detected
- Proactive protection — ensures you are among the first to know about new breaches rather than discovering them weeks or months later
- Security Dashboard — the central overview screen displays the complete security status of all monitored passwords and email addresses in one clear view
- Separated safe and compromised entries — clean visual separation between verified-safe credentials and flagged entries needing attention
- Breach count summary — total number of detected data breaches is shown at a glance
- Priority identification — immediately see which credentials require the most urgent action
- Local Encrypted Data Storage — all passwords and email addresses saved within LeakCheck are stored only on your local PC, never synced to external servers
- Windows DPAPI encryption — data is encrypted using Microsoft’s Windows Data Protection API, with a key tied to your specific Windows user account
- Account-bound security — even if another user accesses your PC, your stored credentials remain encrypted and inaccessible
- Windows Compatibility \& Performance — designed for stability and speed across all major versions of Windows, including server environments
- Supported OS — Windows 7, 8, 8.1, 10, 11, and Windows Server 2012, 2016/2019, 2022/2025
- Lightweight footprint — requires only 50 MB of disk space and a minimum of 2 GB RAM (4 GB recommended)
- Intel and ARM compatible — supports both Intel-compatible processors and Windows on ARM devices
- Business and Commercial License — the Professional Edition permits use in business and commercial environments, unlike the free Standard Edition which is restricted to private use
- Private license — covers up to 2 systems for the registered individual, including personal business use
- Company license — covers up to 5 systems at the licensed company’s location
- Ad-Free and Unrestricted Experience — the Professional Edition removes all advertisements, watermarks, and functional limitations present in the Standard Edition
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Requirements
Before installing LeakCheck Professional, confirm that your system meets the following requirements:
- Operating System: Windows 7, Windows 8 / 8.1, Windows 10, Windows 11, Windows Server 2012, 2016/2019, 2022/2025
- Processor: Intel-compatible or Windows on ARM
- RAM: 2 GB minimum (4 GB recommended)
- Disk Space: 50 MB free space
- Internet Connection: Required for breach database lookups via the Have I Been Pwned API
Downloads
Before committing to the Professional Edition, you can put LeakCheck through its paces at absolutely no cost. ASCOMP offers the Standard Edition of LeakCheck completely free for personal use — giving you full access to manual password and email checking, the security dashboard, and local encrypted storage with no time limit .
Get the free Standard Edition directly from the official ASCOMP website by clicking the button below and see the power of LeakCheck firsthand.
The Standard Edition allows you to verify the software’s functionality, interface, and accuracy using your own credentials before upgrading.
BUY NOW
LeakCheck Professional is available for a one-time fee of $19.90 — no subscriptions, no renewals, no hidden fees. Right now, you can secure your license through our exclusive discount offer available for a limited time only, so act quickly before this deal expires.
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One user, max. two (2) computers (replace with company license = five users, max. five computers)
- Lifetime license (lifelong use; including updates, download & support for two years)
- The full version can be downloaded immediately after the order has been completed.
- Download the full version from your customer menu for a period of up to 24 months at no extra cost.
- Use it on a maximum of two (2) systems – even for personal business.
- Free technical support for a period of up to 24 months.
- Free updates of this product for up to 24 months
Platform: Windows
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The company license may be used in its entirety on up to five (5) systems at the location of the registered licensee company.
- Lifetime license (lifelong use; including updates, download & support for two years)
- The full version can be downloaded immediately after the order has been completed.
- Download the full version from your customer menu for a period of up to 24 months at no extra cost.
- Use it in its entirety on up to five (5) systems at the location of the registered licensee company.
- Free technical support for a period of up to 24 months.
- Free updates of this product for up to 24 months
Platform: Windows
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Extend existing license for two years
- Lifetime license (lifelong use; extends updates, download & support for two years )
- The full version can be downloaded immediately after the order has been completed.
- Download the full version from your customer menu for a period of up to 24 months at no extra cost.
- Free technical support for a period of up to 24 months.
- Free updates of this product for up to 24 months
Platform: Windows
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ASCOMP LeakCheck Professional Key Giveaway
Available now: Free License Key For a Limited Time!
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NOTES:
– All prices shown here are in listed USD (United States Dollar).
– Such promotional programs are subject to change without notice, from time to time in our sole discretion.
– Data may vary based on different systems or computers.
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