A popular e-commerce website requires rigorous stress testing, whereas a small personal blog may only need basic testing of login security mechanisms.

A financial application storing customer data requires encryption validation, whereas a public news app may require basic security measures.

A public forum website requires high-level integrity testing whereas an online banking platform primarily needs availability testing to ensure users can log in anytime.

A hospital’s health record system requires minimal security testing since doctors primarily need availability, while a messaging app needs extensive testing to protect conversations.