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Cloud Service Security Models

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Cloud Service Security Models: Navigating the Layers of Cyber Protection in the Cloud Era


Welcome to a comprehensive exploration of cloud service security models. This lesson is part of our “Basics in Cybersecurity Series”, delving into the intricacies of cloud computing and its critical security aspects.

Demystifying the Cloud

The cloud, often perceived as complex, is fundamentally a transformative approach to utilizing computing resources. It evolved from traditional setups where organizations owned extensive hardware systems.

The Birth of Cloud Computing

With virtualization technology, the underutilization of servers was addressed. This breakthrough led to cloud computing’s birth, characterized by its primary service models:

  1. Infrastructure as a Service (IaaS): Services like Amazon Web Services and Microsoft Azure offer fundamental computing resources.
  2. Platform as a Service (PaaS): Provides additional layers over IaaS, including operating systems and middleware.
  3. Software as a Service (SaaS): Examples include Google Mail and Salesforce, where software is hosted by a third party.
Cyber Cogeanu IaaS PaaS SaaS
Cyber Cogeanu IaaS PaaS SaaS

The Cloud Security Conundrum

In cloud environments, security is a shared responsibility between the cloud provider and the customer.

Shared Responsibility Model

  • Physical Security: Provided by the cloud provider.
  • Infrastructure Security: The provider secures the physical servers and virtualization layers.
  • Application Security: The customer is responsible for securing their applications and data.

Challenges in Cloud Security

Transitioning to cloud services brings forth challenges, including basic security tools provided by cloud vendors and the complexity of securing multi-cloud environments.

Fortinet’s Cloud Security Strategy

Fortinet addresses cloud security challenges with solutions like FortiGate and FortiSandbox, integral to the Fortinet Security Fabric.

Consistent Security Across Environments

Fortinet’s solutions provide uniform security across data centers and various cloud platforms.


Understanding cloud service security models is crucial in the digital landscape. Explore more in our Basics in Cybersecurity Series.

Cogeanu Marius
Cogeanu Marius
Marius Cogeanu is a distinguished IT consultant and cybersecurity virtuoso based in Prague, Czechia. With a rich 20-year journey in the IT realm, Marius has carved a niche in network security and technological solutions, adeptly harmonizing tech with business requirements. His experience spans from Kyndryl to IBM, and as a valued independent consultant, where he's renowned for his innovative approaches in enhancing business operations with cutting-edge tech.Marius's forte lies in demystifying complex IT concepts, ensuring clarity and alignment for stakeholders at all levels. His commitment to staying at the forefront of industry trends and seeking innovative solutions cements his status as a go-to expert in cybersecurity. Driven by a fervent passion for technology and its potential to revolutionize businesses, Marius thrives on tackling challenging ventures, applying his prowess in network design, IT service management, and strategic planning.Currently, Marius is focused on leading-edge IT project management, infrastructure design, and fortifying cybersecurity, guiding clients through the intricate digital landscape with unmatched expertise and insight.Discover more on


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