Cyber Security for Everyone
Safe – Simple – Honest
Independent Software
Free OpenSource Software / FOSS
Our Mission
CritSecurity aims to provide IT Security even for the smallest businesses and private individuals. Cyber attacks are getting more and more sophisticated, intruders won’t stop developing new strategies as well as discover new vulnerabilities with harmful intent. While an intrusion causes a considerable reputation loss for big companies, small companies are in danger of surviving the attack itself economically. Individuals are threatened to lose memories or data bound to very private and irreplaceable value. CritSecurity is able to help you either preventing or recovering from an attack.
Software Security
We’re offering to review your current software in use or your whole architecture and evaluate possible security issues.
Network Security and Engineering
Your infrastructure or website will be reviewed and penetration testing would be conducted on demand.
Open Source Infrastructure
We guide You from Windows to Linux
- more security
- more stability
- lower costs
Software and Web Development
Do not refrain to contact us in case you’re planning a new system or need consultation regarding your current infrastructure.
Consulting
Do not refrain to contact us in case you’re planning a new system or need consultation regarding your current infrastructure.
Software Security
All software is vulnerable in some way, but this is no reason to panic. Just as we try to minimise dangers in life, we do the same in IT. We analyse your applications according to your wishes:
- Is the code secure?
- Is the application configured correctly?
- Do other systems need to be installed to protect the system?
- What to do in case of problems?
We take care of these questions and fix problems together with you.
Network security and engineering
One click, one wrong email, an unknown USB stick inserted and the damage can already be done. Often you can ask yourself the following questions:
- What do I do if software X stops working?
- Which parts of the business come to a standstill?
- How much extra effort will I need to put in to get everything back in order?
- Do my employees know what to do?
A robust corporate network needs robust consulting and testing. Once installed, a network needs recurring analyses to keep up with the constant change of the company and the IT.
We can advise you on all aspects of security, networks, systems and contingency planning.
Opensource Infrastructure
For the longest time on the internet, software was only available for a fee. With the open source movement, this has changed. More than 90% of the servers on the internet run on Linux, an open operating system created in the 1990s. To this day, this ever evolving and improved operating system is loved by administrators for its reliability and security. The other reason is, of course, the low cost. Linux does not require a licence, so especially SMEs can save considerable IT costs by switching to Linux for their servers.
Software and Web Development
There are problems where no software is available yet. For example, in the automation of systems, a specially created programme must often be written to cover all cases.
Or do you need a new website or an application that can be accessed on the Internet and generates sales or customers?
We can help you and offer you various solutions for your IT problems.
Consulting
Without advice, no system and no cooperation will work. We can help you with any IT questions. Be it just to know what the key combination for the task manager is. Or how to efficiently maintain your operation in case of a failure. We have the solutions for these problems. Contact us without hesitation, together we will drive away your “ghost in the wire”.
We are a team of security professionals and developers based in Dietikon, Zurich.
Years of experience within all kinds of companies and teams and regarding the current state of IT-Security lead us to one clue – it could be better! This insight forged a decision to share our spirit about IT-Security in our own company. For an honest and transparent IT-Security in Switzerland.
David Barrera
Founder & IT Security Expert
Professional IT-Security expert since 2014. Has experience in bank-, energy- and resource industry, as well as government contracts. Difficult tasks and challenges continuously forged my knowledge and experience. My credo is to improve IT-Security with trustworthiness and honesty.
Samuel Wittwer, Ph.D.
Co-Founder, Project Manager & Data Analyst
Project lead and data analyst. Experience in Bioinformatics. Co-Founder and consultant at CritSecurity.
Sandro von Ah
Full Stack Developer
Experience in software and web development for 8 years. Code security and review skills for SMB and large web applications. Joined CritSec in 2021.