Phishing is a technique where scammers send out mails where you are lead to think that you log in to a service, supplying your credentials such as username and password. Only, you aren’t even close to the real site. This example is one where I think several people might be fooled. Notice the red markers in the picture below. They are supplied by a Firefox plugin called WOT, and the fact that they are red tells me that other people have been using it to warn people about an unsafe site.
The mail text goes:
You have added firstname.lastname@example.org as a new e-mail address for
your PayPal account.
If you did not authorize this change or if you need assistance
with your account, please click here to contact PayPal customer service.
Thank you for using PayPal
The PayPal Team
Please do not reply to this e-mail. Mail sent to this address cannot
be answered. For assistance, log in to your PayPal account and choose
the ”Help” link in the header of any page.
If you get one of these, or like it. Just throw it away and forget about it. Or report it to Paypal: https://www.paypal.com