Stay Alert - Paypal warns against email scam
If you sell goods online, you'll want to keep an eye out for suspicious activity coming from a scammer who claims to be PayPal. Here's how it works: An "interested buyer" will contact you and ask you to accept payment through PayPal. You'll then receive an email that looks like it's from PayPal, saying you've received payment. If you check your PayPal account, the money isn't there.
Unfortunately, many people don't take the time to check their PayPal account, send the purchased items, and end up without both the money and the goods (not to mention shipping fees). Skipping the step of checking the PayPal account is understandable, considering the emails saying the payment has been made look legitimate.