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Evidence eBay looks for when linking accounts, as originally provided to Modee by an EBAY trust and safety employee:
These ones are pretty obvious that everyone knows/should know:
Cookies
Flash Objects (LSOs)
all IPs (sign in, registration, listing, etc)
Phone #
Date of Birth
Name
Address/Zip code
Bank account / Credit Card (including names)
Shipping information (name/address/etc)
More interesting ones:
Linked by PayPal address, including any addresses you put in your listing, what your account is linked to, etc.
Linked by Picture hosting domain (has to be same subdomain too, ei flikr.com/userid/)
Linked by email addresses. This means if any of your accounts have ever tried to change an email address to the same one. So if on your old account you once tried to change it to [email protected], and then you tried to use that for a new account (successful or otherwise), it's linked.
Similar auction format
Similar items being sold or purchased
Substantially similar feedback comments being left i.e. "Excellent product, fast service, very pleased" and "Great product, very fast, super happy". Those would be a strong link - IF the feedback comments are word for word the same, or close.
Similar user IDs and/or email addresses. So like 'superfashions' and 'greatfashions' or 'toys1234' and 'toys4321', etc.
Same pictures being used or watermark IDs.
Registration or use vs suspension date. So if you were suspended on July 10 and created a new account on July 13. Or you started using an older (dormant) account right after you were suspended on your main account. We (eBay) usually look back 30 days for this, but some CSRs do it longer some do it shorter.
Same password as a previous account.
EBAY also maintains a database of information given to it by snitches - other members trying to rat out their fellow members (competitors):
EBAY uses snitches to suspend members - Free EBAY, PayPal, Business and Law Forums - Ebay Suspension, PayPal Limited
Those are all/most of the links eBay uses. They have to be used in various combinations with each other of course. One link isn't strong enough by itself. There is a department which handles high fraud suspensions which don't have to adhere to these proofs and can basically use whatever they want. But this dept. is reserved for high fraud accounts/accounts linked to them (by higher fraud I mean accounts with thousands/hundreds of thousands of feedback that may start or has started scamming people).
These ones are pretty obvious that everyone knows/should know:
Cookies
Flash Objects (LSOs)
all IPs (sign in, registration, listing, etc)
Phone #
Date of Birth
Name
Address/Zip code
Bank account / Credit Card (including names)
Shipping information (name/address/etc)
More interesting ones:
Linked by PayPal address, including any addresses you put in your listing, what your account is linked to, etc.
Linked by Picture hosting domain (has to be same subdomain too, ei flikr.com/userid/)
Linked by email addresses. This means if any of your accounts have ever tried to change an email address to the same one. So if on your old account you once tried to change it to [email protected], and then you tried to use that for a new account (successful or otherwise), it's linked.
Similar auction format
Similar items being sold or purchased
Substantially similar feedback comments being left i.e. "Excellent product, fast service, very pleased" and "Great product, very fast, super happy". Those would be a strong link - IF the feedback comments are word for word the same, or close.
Similar user IDs and/or email addresses. So like 'superfashions' and 'greatfashions' or 'toys1234' and 'toys4321', etc.
Same pictures being used or watermark IDs.
Registration or use vs suspension date. So if you were suspended on July 10 and created a new account on July 13. Or you started using an older (dormant) account right after you were suspended on your main account. We (eBay) usually look back 30 days for this, but some CSRs do it longer some do it shorter.
Same password as a previous account.
EBAY also maintains a database of information given to it by snitches - other members trying to rat out their fellow members (competitors):
EBAY uses snitches to suspend members - Free EBAY, PayPal, Business and Law Forums - Ebay Suspension, PayPal Limited
Those are all/most of the links eBay uses. They have to be used in various combinations with each other of course. One link isn't strong enough by itself. There is a department which handles high fraud suspensions which don't have to adhere to these proofs and can basically use whatever they want. But this dept. is reserved for high fraud accounts/accounts linked to them (by higher fraud I mean accounts with thousands/hundreds of thousands of feedback that may start or has started scamming people).
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