Security analysis
We analyze applications and networks regarding vulnerabilities in penetration tests and other procedures.
Security consulting
We consult you with questions regarding conceptional, strategic and procedural challenges in cybersecurity.
Security research
We conduct research of various software products to identify and report vulnerabilities to the manufacturer.
Cybersecurity Product
We are building, growing and operating the worlds biggest platform for default passwords, addressing one of the most widespread security misconfigurations worldwide.
About
Find out more about us

We are a young startup based in Sittensen, Germany focusing on cybersecurity technologies.
With numerous years of professional experience in cybersecurity we are actively driving forward the vision of a secure digital environment.
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Consulting
Our experience in cybersecurity consists of a bright variety of security topics. These include strategic consulting, penetration testing, aswell as secure software development and their architecture.
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defaulty.io
With defaulty, we are building the worlds first professional platform for default usernames and passwords. By provding a large and growing amount of security-relevant data, as well a wide range of functions and possibilities to work with these data, we are actively helping to adress the global remediation of this most common security misconfiguration.
Additionally, we have participated in various Bug Bounty programs and independent security research. Some of which, are published at our Blog.
Services
Check our services
Our services are based around the cybersecurity industry.
Cybersecurity consulting
We are offering consultation services in the cybersecurity domain. These include proactive defensive measures, as well as a full life cycle consultation around ransomware including ransomware simulations to test the effectiveness of your implemented processes and technologies.
Cybersecurity analysis
Our security analysis is offering our customers to identify potential threats, attack vectors and leaks. Within our analysis we conduct various methodics, indlucing penetration testing and source code analysis.
Secure Development
We offer professional consultation along the Secure Development Lifecycle, to ensure a secure Software Architecture aswell as the development of a product that is "secure-by-design" and complies with all the best practises in modern secure development.
Security Awareness
The threat originating from Social Engineering and Phishing attacks is remaining to be a major risk to companies of all sizes till this day. We are offering tailormade security awareness trainings and workshops with real-life scenarios and authentic simulations, in order to boost your employees awareness and understanding for cybersecurity risks to harden your human firewall.
Team
Our enthusiastic team
We are passionate cybersecurity enthusiasts since day one and try to help securing the world Bit by Bit. We want to achieve this by consulting and assisting our customers, facing modern-day security challenges within their individual business-situation.

F.A.Q
Frequently Asked Questions
Here are the most common questions asked.
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What is driving us at CyberCitizen and what is the meaning of CyberCitizen?
We are a team of IT security enthusiasts. In a world where attacks to IT systems are happening on a very regular basis, risks to your data as very valuable asset are ubiquitous. Our goal is to elevate our clients IT security to a new level. A cybercitizen is someone who is able to solve (nearly) all problems with a PC. Our team consists of cybercitizens which grew up with the internet and its endless possibilities. This led us to choose CyberCitizen as a name for our company to express our passion and determination to the cyberspace and IT security.
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What kind of Cybersecurity services do you offer?
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Why should I care about Cybersecurity?
Investing in Cybersecurity is always an investment in sustainability of your company since so-called ransomware uses security holes in your system to encrypt your data. Keep in mind that a cyber attack of your company bears the risk of complete inability of your company to operate. Numerous cases have shown that access to the encrypted data was only possible by paying the ransom to a criminal gang. We will help you to prevent this from happening as far as possible and will help you in case your systems are already compromised.
Contact
Contact us
If you would like to get in touch with us, please do so via email or use our contact form below.
We will solely use your email address to answer your query based on your consent when sending the message.
Our Address
CyberCitizen UG (haftungsbeschränkt)
Westerberg 4
27419 Sittensen