eBay explained it more at: Fees August 2008 Other Updates FAQs Quote: |
Google's and Amazon's products and services compete with eBay on a number of levels, so we are not going to allow them on eBay.
| Finally, they admit it. Quote:
How will direct credit card payments to my Internet merchant account work and what do I need to do to use this option?
In checkout, buyers' credit card information will be sent securely to the seller's merchant credit card processor via the Payflow Payment Gateway. To take advantage of this option, sellers will need to have several things in place:
An existing Internet merchant account with their bank or credit card processing company.
Your processor account information from your Internet merchant service provider.
An account with Payflow Payment Gateway. This is a FREE service for eBay sellers, and can be established through a link displayed in your seller preferences page in My eBay starting late this year.
| Looks like eBay is bypassing authorize.net to force sellers with merchant accounts to use an eBay gateway. This gateway appears that not only will it spy on seller's information, but it will be less secure than authorize.net. Authorize.net has a ton of security features in its fraud detection system and even without it, it shows the customer IP so if someone has an IP on the other side of the world from where they order then you know something is up. Here's proof: PayPal Payflow payment gateway vulnerable to XSS | News | XSSed.com
This gateway is part of paypal, too: "Payflow Payment Gateway" - Google Search  | 
