PayPal suspended the account of a white-hat hacker on Tuesday, a day after someone used his research into website authentication to publish a counterfeit certificate for the online payment processor. Under the Acceptable Use Policy, PayPal may not be used to send or receive payments for items that show the personal information of third parties in violation of applicable law, company representatives wrote in an email sent to the hacker, Moxie Marlinspike. Please understand that this is a security measure meant to help protect you and your account. We apologize for any inconvenience
Source: https://threatpost.com/researcher-banished-showing-how-hack-paypal-100709/72302/