Atos Expert
About Marcin Lewandowski
Product Director – GDC CYS MS Hybrid Cloud & Plat. Security
Marcin is a cybersecurity and network transformation leader with over 25 years of international experience in secure networking, cloud security, and enterprise architecture. As Network Security Product Director at Atos, he drives the vision and evolution of next-generation security services, including Zero Trust, SASE, microsegmentation, and cloud-delivered security solutions.
Throughout his career, including his role as Global Head of Engineering for Security, Marcin has led global teams and major transformation initiatives for some of the world’s largest organizations. He specializes in translating complex cybersecurity challenges into practical, scalable services that enable organizations to strengthen resilience, accelerate digital transformation, and achieve measurable business value.
Marcin Lewandowski
Articles posted by Marcin Lewandowski
Microsegmentation: The security upgrade you can’t ignore (Part 1)
Microsegmentation: The security upgrade you can’t ignore (Part 1) Most security incidents do not begin as crises. They begin quietly, with a single compromised endpoint, a stolen credential, or an unpatched vulnerability. What determines the severity is what follows. The decisive moment is not the initial breach. It is the attacker’s ability to move laterally
Managed SASE in 2025: From a Buzzword to a Business Imperative
Managed SASE in 2025: From a Buzzword to a Business Imperative Over the past few years, Secure Access Service Edge (SASE) has evolved from a trending acronym into a core enabler of digital business. What started as a technical concept — combining networking and security in the cloud — is now central to