About 4Securitas

4Securitas™ is an innovative European cyber security firm focused on proactively preventing cyberattacks as well as protecting the critical data at the core of every organisation. With offices in Ireland and Italy, the company develops ACSIA XDR Plus™ (Automated Cyber Security Intelligence Application), an Extended Detection and Response solution, that includes Threat Intelligence and Anti-Surveillance protection in our core XDR product. 

We deliver a highly evolved and advanced level of cyber protection across hybrid cloud infrastructures, with real time remediation of threats and automation at the core of our design. Our company mission statement is “to democratize the availability of ACSIA as the next modern cyberdefense platform of choice, providing the highest levels of data protection in the market, using open source technology at an affordable price.”

4Securitas was founded by CEO Stefan Uygur and CAO Donal Kerr. Investors include Enterprise Ireland, French cybersecurity services firm iTrust, and Italian investment fund AVM Gestioni.

Our investors

Senior Management Team

Stefan Umit Uygur


Background: Sun Microsystems, Oracle, The Stars Group, First Derivatives, BackBox 

Donal Kerr


Background: Twitter, Citibank, Boston College

John Long


Background: Sabeo Technologies, Digital Equipment Corporation

Carlo Nasi

Head of Global Business Development

Background: Warner Records

Domenico Chirabino

Chief Research and Development Officer

Background: Saadian Technologies, Agenzia delle Entrate, Reply

Claudio Leonardi

Country Manager: Italy

Background: Juventus FC

Claudio Proietti 4Securitas

Claudio Proietti


Background: Nestle

Richard Daly 4Securitas

Richard Daly

Head of Sales

Background: Alien Vault, Solarwinds

Andrea Ceresoni 4Securitas

Andrea Ceresoni

Chief Product Officer

Background: Fastweb, Amazon, Italian Government (Presidency of the Council of Ministers)

Daniela Chirabino

PR & Communication Manager

Background: Vueling, University of Milano-Bicocca, eDreams ODIGEO

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