Securing Paypal's payment form

hsuminto
Contributor
Contributor

Hi all, I am developing a shopping cart that will use Paypal to process payments. I will use _cart type of button with itemized products. My question is: how do I secure my forms (with a series of hidden fields) from being tempered by changing the value of the hidden fields? Which is easy to do using something like Firebug. For example, the price can be changed or even the valud of business field that is supposed to be my registered email address with Paypal.

 

Please help. Thank you.

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