I've gotten emails like that from both paypal and ebay, usually telling me my account has been hijacked and I should sign in to verify I am who I say I am. Or some such thing that is fairly confusing. I reported them to paypal or ebay and always got back the response that it was a hoax. So the answer is don't ever click on a link and type in a name and pasword. If you need to sign in to something type in the address rather than using a link that could bring you to a fraudulent page.