Now that you have a security overview, let's learn a crucial concept: the Shared Responsibility Model. This model defines which security tasks are handled by AWS and which are handled by you, the customer.

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Think of it like renting an apartment. Who is responsible for locking the building's main door versus your apartment door?

AWS uses a simple phrase to explain this: AWS is responsible for security OF the cloud, while you are responsible for security IN the cloud.

Let's break down what that means in practice.

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How would you explain this concept in one sentence?

Security OF the cloud is what AWS manages. This includes the physical security of their data centers (fences, guards, cameras), the networking hardware, and the underlying software that runs all AWS services.

You inherit all the benefits of their world-class physical security without having to build it yourself.

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What advantages do you see in inheriting AWS's physical security infrastructure?

Security IN the cloud is what you are responsible for. This includes managing your data, configuring access permissions for your users, and securing your operating systems and applications that you run on services like EC2.

Basically, anything you create or configure in the cloud is your responsibility to secure.

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Which of your responsibilities sounds the most challenging?

Here's a specific example: For a service like Amazon EC2, AWS secures the physical server hardware. However, you are responsible for keeping the operating system on your EC2 instance patched and updated.

This clear division of responsibility ensures that all security aspects are covered.