Why security must be designed in in HLD - Quick Recap

Recall & Review

beginner

What does it mean to 'design security in' a system?

It means planning and building security features from the start, not adding them later. This helps prevent risks and makes the system safer.

beginner

Why is adding security after development often problematic?

Because it can be costly, cause delays, and may not cover all vulnerabilities. Fixing security later is like patching holes in a boat after it starts leaking.

beginner

Name one real-life example that shows why security must be designed in.

A bank building with strong locks and cameras from the start is safer than adding them after a robbery. Similarly, systems need security from the beginning.

intermediate

How does designing security in improve system scalability?

It ensures security measures grow with the system, avoiding weak points as the system gets bigger and more complex.

intermediate

What are some risks of ignoring security in the design phase?

Risks include data breaches, loss of user trust, legal penalties, and expensive fixes later.

Why should security be included during system design?

A To avoid writing documentation

B To prevent vulnerabilities early

C To make the system slower

D To save money on hardware

Including security early helps prevent vulnerabilities and reduces risks.

What is a common problem when adding security after development?

A It may miss critical vulnerabilities

B It improves user experience

C It is cheaper and faster

D It reduces system complexity

Adding security late can miss important vulnerabilities and cause delays.

Which analogy best explains designing security in early?

A Building a house without doors

B Painting walls after furniture

C Locking doors after a burglary

D Installing locks before moving in

Installing locks before moving in is like designing security early.

What risk increases if security is ignored in design?

A Data breaches

B Faster development

C Lower costs

D Better performance

Ignoring security can lead to data breaches and other risks.

How does designing security in affect system scalability?

A It makes scaling impossible

B It limits growth

C It ensures security scales with system

D It has no effect

Designing security in helps security grow as the system scales.

Explain why security must be designed into a system from the beginning.

Think about fixing problems before they happen.

Describe the risks of adding security only after system development is complete.

Consider what happens if you patch a leaking roof after a storm.