Why defense in depth matters in AWS - Quick Recap

Recall & Review

beginner

What is 'defense in depth' in cloud security?

Defense in depth means using multiple layers of security controls to protect data and systems. If one layer fails, others still protect you.

beginner

Why is relying on a single security control risky?

Because if that one control fails or is bypassed, attackers can access your system easily. Multiple layers reduce this risk.

intermediate

Name three layers commonly used in defense in depth for AWS.

Network layer (firewalls, VPCs), Identity layer (IAM roles, MFA), and Data layer (encryption, backups).

intermediate

How does defense in depth help with human errors?

If a person makes a mistake, other security layers can catch or limit the damage, preventing a full breach.

beginner

What is a real-life example of defense in depth?

Like locking your house door, having an alarm system, and a safe inside. If one fails, others still protect your valuables.

What does defense in depth primarily aim to do?

A Rely on one strong firewall

B Use multiple security layers to protect systems

C Avoid using encryption

D Remove all security controls

Defense in depth means using several layers of security, not just one.

Which AWS service helps with identity management in defense in depth?

A Amazon EC2

B Amazon S3

C AWS IAM

D AWS CloudWatch

AWS IAM manages user identities and permissions, a key layer in defense in depth.

Why is encryption important in defense in depth?

A It deletes data automatically

B It speeds up data transfer

C It disables firewalls

D It makes data unreadable without keys

Encryption protects data by making it unreadable without the correct key.

If one security layer fails, what does defense in depth rely on?

A Other security layers to still protect

B Giving up on security

C Turning off all controls

D Ignoring the breach

Defense in depth uses multiple layers so others can protect if one fails.

Which of these is NOT a layer in defense in depth?

A Turning off monitoring

B Identity and access management

C Data encryption

D Network security

Turning off monitoring reduces security and is not part of defense in depth.

Explain in your own words why defense in depth is important for cloud security.

Think about how having several locks on a door is safer than just one.

List and describe three layers of defense in depth you can use in AWS.

Consider how you protect your house, your keys, and your valuables.