Which technique differs from full page overlays by only masking or modifying selected page controls to mislead the user?

Which technique differs from full page overlays by only masking or modifying selected page controls to mislead the user?

• A. Complete Transparent Overlay
• B. Hidden Overlay
• C. Cropping
• D. DNS Rebinding Attack

Answer: (C)

Selective masking of UI elements to mislead the user hinges on altering what portion of a page is visible. Cropping achieves this by hiding or removing parts of the page so that only certain controls remain in view. By presenting just those controls, the observer can be guided toward actions that seem legitimate on the shown interface, while the surrounding context is hidden or altered. This differs from full-page overlays, which blanket the entire screen and obscure the original page regardless of which controls are involved. The other options either place an overlay across the whole page (even if transparent) or refer to techniques outside the browser UI manipulation context, such as DNS rebinding, which targets network behavior rather than what is shown on the page. Therefore, cropping is the approach that masks only selected page controls to mislead the user.

Selective masking of UI elements to mislead the user hinges on altering what portion of a page is visible. Cropping achieves this by hiding or removing parts of the page so that only certain controls remain in view. By presenting just those controls, the observer can be guided toward actions that seem legitimate on the shown interface, while the surrounding context is hidden or altered. This differs from full-page overlays, which blanket the entire screen and obscure the original page regardless of which controls are involved. The other options either place an overlay across the whole page (even if transparent) or refer to techniques outside the browser UI manipulation context, such as DNS rebinding, which targets network behavior rather than what is shown on the page. Therefore, cropping is the approach that masks only selected page controls to mislead the user.