[Porsche]

What the scammers do is "phishing" - they send you an email pretending to be eBay telling you to login or you'll get suspended - if you click on the link in the email, you go to a fake eBay site where they collect your username and password which they then use to hijack your account. You can tell when an account is hijacked because in the eBay ad they tell people to email them outside of eBay since they cannot change the eBay email address without alerting the owner (as the email needs to be confirmed via the old email address).