A phishing scheme that is sending emails claiming to be issued by PayPal online payment service asks users for their account login details along with other personal information in order to gain access into their accounts. Users are led into a fake PayPal site that is linked in the email and used to steal their information.
Keep in mind Paypal will always address an e-mail to your username. The hackers usualy only have have your name and not your username. Either way i would never give out any information by e-mail.