4. Don't do anything outside eBay: Occasionally people will ask you to send them money outside eBay, to avoid the fees eBay charges sellers. Any money you send this way is entirely insecure don't do it.
5. Be careful where you send payment: People may hack into others' accounts, and ask you to send payment to addresses that eBay has not confirmed as belonging to that account you might send your money and receive nothing in return.
6. Look out for sellers who suddenly change what they sell: Sellers can look like they've made lots of transactions, when really they've never sold anything of worth. If they suddenly start selling $1,000 televisions, steer clear the chances are they're planning to run off with the money.
7. Beware the shill bidder: If someone who doesn't seem to have bought anything before is constantly outbidding you on a certain item, be suspicious. It might be a seller shill bidding' to force up his item's price.