Heilig Defense
Developing innovative defensive solutions today to defeat tomorrow's advanced threats.
Cool. Tell Me More.

Heilig Defense

At Heilig Defense, we are passionate about cyber security. We are constantly striving to create easy to use but highly effective defensive security solutions that protect your endpoint, network and data from attackers before they have an opportunity to cause damage. Highly innovative, motivated and agile, Heilig Defense works hard at perfecting the five D's of cyber defense.


Identify malicious activity during any phase of an attack.


Trap the adversary with clever deception and stealth.


Prevent the adversary from achieving their objectives.


Stop an attack in its tracks by blocking on the endpoint or the network.


Harden your systems to prevent attacks in the first place.

Products and Services

Heilig Defense provides a wide range of security products and services. While not all products are available for download (or even listed here), please do not hesitate to contact us if you have any questions or if you would like to learn about all that Heilig Defense offers.

Request a Demo


Advanced Threat Hunting

CyDec Security

Cyber Deception Made Easy


Ensure Network Device Integrity

In addition to our core solutions listed above, we also offer a number of other smaller but still very useful tools.


Stop online trackers from accurately fingerprinting your browser.

Browser Bubble

Complete browser isolation for total privacy and security.


Build defensive walls around your data to protect against destruction and theft.

Route Shield

Process level routing for precise network control.

About Us

Cyber: It's what we do!

  • Who Are We?

    Heilig Defense is a self-funded, certified SDVOSB start-up based in Arlington, Virginia with a focus on developing advanced defensive cyber security solutions.

  • Our Mission

    Provide the next generation of security solutions to protect your organization's endpoints, network and data.

  • Why Choose Heilig Defense?

    Heilig Defense leverages years of government and industry experience in cyber security to build unique information security solutions that meet today's pressing cyber challenges.

Develop With Heilig Defense

Got skillz? Send us your CV.

Heilig Defense is always on the look out for top talent. Ideal candidates will have strong development skills in a variety of languages, from low-level ASM and C to higher level languages like .NET and Python. Should have a passion for all things cyber security with a deep understanding of pressing security issues. Knowledge of system internals (Windows is preferred) is required. And critical thinking, reading comprehension and communication skills are a must.

We are a fast paced start-up working on cool technologies to support important customers. If you like a challenge and think you can cut it, send your resume to skillz@heidef.com.

Videos, News and Updates

29 Dec 2021CyDec Security Anti-Fp v1.2021.363.1841 released
29 Dec 2021CyDec Security Anti-Fp Extension (Firefox) v1.2021.363.1841 released
29 Dec 2021CyDec Security Anti-Fp Extension (Chrome) v1.2021.363.1841 released
29 Dec 2021CyDec Security Anti-Fp Extension (Edge) v1.2021.363.1841 released
28 Dec 2021CyDec Security Browser Bubble v1.2021.362.1737 released
12 Nov 2021Route Shield v1.2021.316.611 released
05 Aug 2020CyDec Security Nmap OS Spoofer v1.2021.216.1510 released
05 Aug 2020CyDec Security Ransomware Keyboard Spoofer v1.2021.216.1442 released
13 Jul 2021Folderfication v1.2021.189.154 released
19 Oct 2020AntiFp.com now available.
15 Sep 2020MultiProxTabs Extension (Firefox) v1.2020.259.255 released
25 Jun 2020Active Directory Query Monitor v1.2020.174.1740 released
28 Feb 2019Heilig Defense places 2nd at DreamPort Rapid Prototyping Event.
10 Oct 2017DHS S&T Awards $67K to Philadelphia Small Business for Defense Against Cyber-Threats

Transparent File Encryption with Folderfication

Nmap Spoofing with CyDec Platform.

Contact Us


1101 Wilson Blvd | 6th Floor
Arlington, VA


(703) 783-CYBR