Defensive Design Considerations (OCR GCSE Computer Science): Flashcards

Programming strategies to handle unexpected inputs or misuse

Programs that function correctly when faced with errors or improper data

Cleaning data to remove potentially harmful characters or code

Ensuring data entered is appropriate and meets expected criteria

Assume users may use program incorrectly or maliciously

Limit the length of text inputs

Sanitise user inputs in forms

Handling unexpected events like file not found or network failure

Ensures users are who they claim to be

Extra verification layer using code sent to phone or email

Prevents brute-force attacks

Boundary conditions like empty list, large numbers, special characters