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Stops DDoS Attacks Instantly

And Dozens of Other Types of Cyberattacks

Hacker Blocker blocks over 700,000,000 researched IP address used for nefarious purposes upon installation, and updates every subscriber's native firewalls when only one is attacked.

Windows Server Security
Windows PC
LAMP Stack

Endpoint Protection

For Windows Server, PC & Linux

Since 2016, Hacker Blocker has been building the most comprehensive Firewall Blocklist from millions of attacks on their own clients and online reporting databases.

Hacker Blocker updates native Windows Firewalls with less than 50 Rulesets to block over 700 million researched IP Addresses at all of your Endpoints; - without blocking legitimate traffic.

Firewalls get updated every hour with new Rules as attacks are detected on any client.

When one client is attacked, every client is protected within minutes.

Windows Firewall Rules

We Are All Under Attack

Hackers use specialized tools and distribution networks known as “bot-nets”, which are networks of compromised web servers mainly in Russia, China, Southeast Asia and other hacker-friendly countries around the globe. These bot-nets are also known as “Zombie Armies” and are used to send spam or phishing emails, extort money, steal identities, infect other servers and workstations, or just bring down a website or network for their own agenda.

Below is a Live Map of cyberattacks in real-time. Our subscribers are blocking over 90% of these attacks.

The Hacker Blocker System

Since 2016 we've collected, researched and blocked over 700 Million IP addresses from recorded attacks on clients, abuse databases, and Government sources in our Firewalls. Our experts receive attack reports from all subscribers in real-time, research and add them to our Master Blocklist as they come in.

Hacker Blocker downloads new rules 24/7/365 and updates your native Windows Firewall Rules with new entries, keeping your firewalls up-to-date and synchronized.

cyber attack detection


Detection and identification of cyber-attacks on our clients email, websites and servers with third-party security systems.

Cybersecurity Research


Each reported IP Address is researched for abuse, traced to it's point of origin and the network it is from.



The IP Address or entire CIDR is added to our Master Blocklist and syndicated to every client within minutes.

Performance Boost

Server Performance Boost, More Available Bandwidth

Public-facing servers suffer a barrage of attacks every minute of every day. Hacker Blocker stops many of these attacks instantly.

  • Faster Servers & Network
  • More Available Bandwidth
  • Drastic Reduction in Attacks
  • Increased Traffic to Websites

The Master Blocklist

Our Master Blocklist is the culmination of years of work from thousands of sources around the world. Combining databases from abuse reporting websites, Government sources and cyber-attacks on our own clients, we've created one of the most comprehensive lists of IP addresses and CIDRs used by C2 Commanders, Bot-Nets, Spammers, Hackers and Malware / Ransomware servers.

Most blocked IPs are compromised web hosting servers, not people. We take great care in our IP blocks, and provide unblock request pages for all websites that have Hacker Blocker Hosting.

Want to Speak to a Cybersecurity Specialist?

Call our offices or email us to schedule a call. (617) 819-5877

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