Why Security recommendations and score in Azure? - Purpose & Use Cases

The Big Idea

What if you could instantly know how secure your cloud is and what to fix first?

The Scenario

Imagine you manage a big cloud environment with many resources like virtual machines, databases, and storage. You try to check security settings one by one, manually reviewing each resource to find weak spots.

The Problem

This manual checking is slow and tiring. You might miss important security gaps or forget to fix some issues. It's like trying to find a needle in a haystack without a magnet.

The Solution

Security recommendations and score automatically scan your cloud resources and give you clear advice on how to improve security. They show a score that tells you how safe your environment is, helping you focus on the most important fixes first.

Before vs After

✗ Before

Check each VM and storage account settings one by one in portal or scripts

✓ After

Use Azure Security Center (now called Microsoft Defender for Cloud) to get a security score and recommendations automatically

What It Enables

This lets you quickly understand your security risks and fix them efficiently, keeping your cloud safe without stress.

Real Life Example

A company uses security recommendations to find that some storage accounts allow public access. They fix this quickly, improving their security score and protecting sensitive data.

Key Takeaways

Manual security checks are slow and error-prone.

Security recommendations automate risk detection and suggest fixes.

Security score helps prioritize improvements for safer cloud environments.

Practice

1. What does the Azure security score represent?

easy

A. A number showing how well your cloud resources are protected

B. The total cost of your Azure services

C. The number of users in your Azure subscription

D. The amount of storage used in your Azure account

Solution

1. Step 1: Understand the purpose of security score

   The security score is designed to give a simple measure of how secure your cloud environment is.

2. Step 2: Identify what the score reflects

   It reflects how many security recommendations you have fixed and how protected your resources are.

3. Final Answer:

   A number showing how well your cloud resources are protected -> Option A

4. Quick Check:

   Security score = protection level [OK]

Hint: Security score measures protection level, not cost or users [OK]

Common Mistakes:

• Confusing security score with cost or usage metrics
• Thinking it counts users or storage instead of security
• Assuming it is a percentage instead of a score

2. Which Azure CLI command shows your current security recommendations and score?

easy

A. az vm list

B. az network vnet list

C. az storage account show

D. az security assessment list

Solution

1. Step 1: Identify the command related to security

   The command to get security recommendations and score is under the 'security' group in Azure CLI.

2. Step 2: Match the command to the correct syntax

   'az security assessment list' lists security assessments and recommendations.

3. Final Answer:

   az security assessment list -> Option D

4. Quick Check:

   Security info = az security assessment list [OK]

Hint: Security commands start with az security [OK]

Common Mistakes:

• Choosing commands unrelated to security
• Confusing VM or storage commands with security commands
• Using commands that list resources but not security info

3. You run az security assessment list and see 5 recommendations. After fixing 3, what happens to your security score?

medium

A. It resets to zero automatically

B. It increases because you fixed some recommendations

C. It stays the same because score does not change

D. It decreases because you had recommendations

Solution

1. Step 1: Understand how fixing recommendations affects score

   Fixing security recommendations improves your protection, so the score should increase.

2. Step 2: Eliminate incorrect options

   The score does not decrease or reset to zero when fixing issues; it reflects improvement.

3. Final Answer:

   It increases because you fixed some recommendations -> Option B

4. Quick Check:

   Fixing issues = score up [OK]

Hint: Fixing recommendations raises your security score [OK]

Common Mistakes:

• Thinking score decreases when fixing issues
• Believing score stays constant regardless of fixes
• Assuming score resets after changes

4. You tried to run az security assessment list but got an error saying 'command not found'. What is the likely cause?

medium

A. Azure CLI is not installed or not updated

B. You typed the command correctly but your internet is off

C. Your subscription has no virtual machines

D. You need to run the command inside a virtual machine

Solution

1. Step 1: Analyze the error message

   'Command not found' usually means the CLI tool or extension is missing or outdated.

2. Step 2: Check other options

   Internet off would cause different errors; subscription content or VM location does not cause 'command not found'.

3. Final Answer:

   Azure CLI is not installed or not updated -> Option A

4. Quick Check:

   Command not found = CLI missing or outdated [OK]

Hint: Command not found means CLI missing or outdated [OK]

Common Mistakes:

• Assuming internet off causes 'command not found'
• Thinking subscription content affects command availability
• Trying to run commands only inside VMs

5. Your Azure security score is low due to many open ports on virtual machines. What is the best way to improve your score?

hard

A. Add more storage accounts

B. Increase the size of your virtual machines

C. Close unnecessary ports using network security groups

D. Create more virtual networks

Solution

1. Step 1: Identify the security risk

   Open ports increase attack surface; closing unnecessary ports reduces risk.

2. Step 2: Choose the best action to reduce risk

   Network security groups control ports; closing ports improves security score.

3. Step 3: Eliminate unrelated options

   Increasing VM size, adding storage, or creating networks do not reduce open ports or improve security score.

4. Final Answer:

   Close unnecessary ports using network security groups -> Option C

5. Quick Check:

   Close ports = better security score [OK]

Hint: Close open ports with security groups to boost score [OK]

Common Mistakes:

• Thinking bigger VMs improve security score
• Adding storage or networks unrelated to port security
• Ignoring network security group rules