About Us

4Securitas is Irish company specializing in cybersecurity and AI, and the developer of ACSIA, a next generation automated cybersecurity monitoring and defence tool, designed to protect Servers from the full range of cyberattack and threats.

4Securitas is graduate of New Frontiers (an Enterprise Ireland program) program at the Synergy innovation centre at Technology University Dublin and an alumni of Bank of Ireland StartLab Fintech Program.

The company’s focus is global and its product of particular interest to companies in heavily regulated industries such as banking, FinTech, utility and energy sectors as well as government bodies.

Our world class and global technical team will help you to secure your critical servers and protect your digital assets. With decades of experience in cyber security, infrastructure, system and network administration, hacking, penetration testing, linux and open source our team includes PhDs and former employees of Fortune 500 companies.


Our team has built and managed large infrastructures and managed security for Fortune 500 companies and government departments all over the world and has decades of experience in cybersecurity.

We are pioneers of Free Open Source Software, our technical team also develop and maintain BackBox Linux, one of the world's pre-eminent Linux Distributions focused on cyber security among other initiatives.

Jack Nagle
Jack Nagle

Over 30 years experience in IT; Extensive Professional Services and consulting experience in Europe and North America, primarily in the area of Security systems. Key team member in the acquisition and deployment of numerous large IT projects; particular experience in the Public Sector. Equally comfortable with both the technical and commercial. Qualifed ISO 27001 Auditor. Lecturer on Postgraduate Programmes in Dublin City University Business School.

Donal Kerr
Donal Kerr
​Co-founder & COO

Qualified lawyer and business builder adept at providing strategic and regulatory counsel and issues management on a cross-company level. General management and leadership experience in high growth technology firms. Functional expertise in sales, marketing, operations, product, legal, strategy, and comms. 

Member of Boston College/US State Dept. 'Strengthening Cybersecurity' Program for cybersecurity leaders from North and South of Ireland.

Stefan Umit Uygur
Stefan Uygur
Co-founder & CEO

Extremely motivated a Free Open Source Software evangelist with a great interest in sharing knowledge. Interested in working in a community environment where the knowledge have no boundaries. Experienced infrastructure analyst, designing and building large IT infrastructures, both on-premise and cloud environment. Decades of experience in Cybersecurity and promoter of real world of hacking and hacker culture and ethics.

code image

Simplify Security

Subscribe to our blog on how to secure your digital assets and achieve more.


There will be no AWS subscription charges for the trial but basic AWS infrastructure charges still apply.

Scroll to Top