How It Works

Hacker Blocker is the Only Firewall Updating Software & Service

Hacker Blocker works by updating the native Windows Firewall IP block lists with over 400 million verified hackers, spammers and bots from around the world. Each one of these IPs and CIDRs are verified, vetted and confirmed before being added to our list. Right now, we have one of the most comprehensive list of known hackers in the world. We update this list constantly, as our central station receives reports of attacks from our clients, verifies and adds them to the block list. The more they attack our clients, the stronger our protection becomes.

Windows Firewall

Windows Firewall is updated by Hacker Blocker every 15 minutes, downloading our block list and updating the rules in the Firewall. Hacker Blocker runs as a service, so can be used in Virtual Environments, even protect entire networks. Networks that install our software have seen up to a 90% drop in bandwidth usage immediately, with a corresponding drop in power usage and heat production, resulting in longer hardware life.

Windows 7, 8x, 10 Firewall Updater

WHM Firewall

Many web servers run on WHM (Web Host Manager), a software for configuring your hosting server. Our update server will update your Firewall automatically using secure FTP every 15 minutes to keep it updated against the latest attacks.

Windows Firewall Updater

3rd Party Firewalls

For using 3rd Party Firewalls, subscribers can download CSV files of IP Block Rules for easy import. Our CSV files include our complete list of blocked CIDRs and IPs. If you require a different format, contact our team.

3rd Firewall Rules


For non-dedicated PHP websites such as WordPress, Joomla and Drupal, we update your .htaccess file every 15 minutes.

htaccess hacker protector

How Our Block List is Compiled

myip.msEvery day, websites, servers and PC are attacked by hackers and spammers. These cyber-criminals, usually from Russia, Ukraine and China, continually bombard all of us with attacks such as brute force password attacks, Malicious User Agents, SQL Injections, Virus Uploads, File Inclusions and DoS attacks.

We've created a system that reports attacks on websites and servers across the country to our central station, where we research their origin and if they are a hacker, block them. Part of our research involves vetting these IPs with online reporting agencies, often obtaining the CIDR of that IP. If it is a foreign network, and other IPs have been reported as well, we add the entire network to our list. Our block list changes constantly, as new IPs are reported, vetted, reviewed and added by our dedicated team.

Our list includes Hackers, Spammers and 'Bot Bots', mainly from overseas; but we do have a number of US based IPs, most from compromised web hosting servers. We're very careful about blocking IPs and CIDRs from America, so even government agencies can safely use our software without blocking legitimate traffic.

Subscriptions, Updates and Support

Hacker Blocker for Windows receives automatic updates for Active Subscribers and updates the rules of the native firewall. IP pools change all the time, so having the latest IP list is crucial to staying protected.

Hacker Blocker subscriptions also include updates to .htaccess files, plain text files, and CSV files for 3rd party firewalls. These files are updated as new IPs are reported and vetted through online reporting agencies. Your Subscription Key is required to install Hacker Blocker, contact us for licensing options.

We provide installation support for servers, websites and WHM Firewall plugins, contact our offices for prices and availability Mon-Fri, 9-5 EST.

Need help?

Call us at +1(617) 819-5877

Hacker Blocker for Windows
Hacker Blocker for Windows Server
Hacker Blocker for Linux
Hacker Blocker for WHM Firewall
Hacker Blocker for Apache HTACCESS
Hacker IP Blocker
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Contact Us

Hacker Blocker
U.S. Sales: (617) 819-5877
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