Are you asking if your ebay account can be hacked? If you give them your password, it can be hacked but otherwise, I don't think that it happens often....at least I don't hear about it. You do have to be cautious. An authentic email from ebay should show up in your ebay messages. If it is only in your personal email, it could be fake. Ebay and paypal emails should have your real name..not just your id name. Do not click on any links in their emails....a link is often a sign that it is a spoof email. If you think the email is a spoof, you can forward it to spoof@ebay.com or spoof@paypal.com
Also...I would suggest that you be careful when buying any type of electronic items from Asia as they are not always what they say they are. Name brand items from there are often faked as well.
If a price is too good to be true..it probably isn't true.