The Security Practitioner's Intro to the Cloud: Everything You Ever Wanted to Know But Were Afraid to Ask

The Security Practitioner's Intro to the Cloud: Everything You Ever Wanted to Know But Were Afraid to Ask

Before I bought a house a few years ago, my understanding of mortgages was pretty shaky at best. I only kind of knew what a mortgage was, but because everyone else around me seemed to have totally grasped the concept, I didn’t want to ask questions and come off as stupid.


In the many conversations I’ve had with security professionals, I’ve found the same to be true of the cloud. There’s still a gap in understanding, even at a very basic level, but most don’t know where to turn and are certainly not asking their peers for fear of feeling behind or uninformed.


In this blog post, I’m going to provide an introductory primer on the cloud and cloud security for security professionals who want to fill in the blanks and stay up to speed with the security community. Let’s get started!


What is the cloud?


In short, the cloud is software or hardware you access over the internet.


What is the difference between cloud infrastructure (IaaS) and cloud software (SaaS)?


A common question we get asked is about the difference between cloud infrastructure and cloud software. It’s an important difference to understand. We often hear customers say they’re migrating to the cloud by moving from Microsoft Office to Office 365. While this is a cloud migration, it’s generally not the cloud migration that many organizations are undertaking or thinking about starting.


Cloud-based software (also called “software-as-a-service” or SaaS) includes software like Google Docs, Salesforce, and Netflix. It’s software you access using a web browser, as opposed to software that you install on your computer. So, the ..

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