In e-commerce, what data can be altered via hidden fields to influence checkout pricing and transactions?

In e-commerce, what data can be altered via hidden fields to influence checkout pricing and transactions?

• A. Prices manipulated during checkout
• B. User credentials stolen
• C. Prices and transactions altered via hidden fields
• D. Data stored in cookies

Answer: (C)

Hidden fields live in the HTML of a page and are sent from the client to the server with every form submission. Because they are part of the client-side data, a person using a browser can view and alter them before the request is processed. If an e-commerce checkout relies on values from these hidden fields to set prices or drive the transaction, someone could tamper with those values to influence the final price or the terms of the transaction. The safe design principle is to perform all pricing and critical transaction decisions on the server side, validate and recalculate totals using server-held cart data, and protect the data with integrity measures (like signatures or server-side session state). By ensuring that hidden fields are not trusted for pricing or transaction integrity, you prevent manipulation of prices and orders. This is why the correct choice points to prices and transactions being alterable via hidden fields.

Hidden fields live in the HTML of a page and are sent from the client to the server with every form submission. Because they are part of the client-side data, a person using a browser can view and alter them before the request is processed. If an e-commerce checkout relies on values from these hidden fields to set prices or drive the transaction, someone could tamper with those values to influence the final price or the terms of the transaction. The safe design principle is to perform all pricing and critical transaction decisions on the server side, validate and recalculate totals using server-held cart data, and protect the data with integrity measures (like signatures or server-side session state). By ensuring that hidden fields are not trusted for pricing or transaction integrity, you prevent manipulation of prices and orders. This is why the correct choice points to prices and transactions being alterable via hidden fields.