HTML API security concerns

What are the security concerns of using the HTML API? If
somebody were
to alter and submit a form, and reduce the price of an item,
this is
easily seen. Can a person give themselves a credit to their
credit
card by entering a negative amount for a item price? I'm
just
wondering what level of paranoia is reasonable.


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People can change the price .. which should not be too big
of a concern if 
you manually ship the items.

In other cases, you can use the callback method to do price
verification.

Robin
http://www.e-junkie.com/



----- Original Message ----- 
From: "tvsewingcenter" <tvsewingcentergmail.com>
To: "Google Checkout Developers Forum - API Integration
Basics" 
<google-checkout-api-integrationgooglegroups.com>
Sent: Thursday, September 27, 2007 5:02 PM
Subject: [google-checkout-api-integration] HTML API security
concerns


>
> What are the security concerns of using the HTML API?
If somebody were
> to alter and submit a form, and reduce the price of an
item, this is
> easily seen. Can a person give themselves a credit to
their credit
> card by entering a negative amount for a item price?
I'm just
> wondering what level of paranoia is reasonable.
>
>
> > 


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Robin,
I don't know what the callback method is. Can you send me a
link to
where this is described, or give me an example.
Thank you,
Robert


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