Jane has just accessed her preferred e-commerce web site and she has seen an item she would like to buy. Jane considers the price a bit too steep; she looks at the page source code and decides to save the page locally to modify some of the page variables. In the context of web application security, what do you think Jane has changed?

A.
An integer variable

B.
A ‘hidden’ price value

C.
A ‘hidden’ form field value

D.
A page cannot be changed locally; it can only be served by a web server

Explanation:
Changing hidden form values is possible when a web site is poorly built and is trusting the visitors computer to submit vital data, like the price of a product, to the database.