Yes, PayPal uses a variety of security measures to protect users' funds and personal information. In addition, PayPal offers a buyer protection program to provide users with additional security.

Yes, PayPal supports multiple currencies and languages worldwide, making it easy for users to transact across borders.

Most of PayPal's features are free, but in some specific cases, there may be some fees, such as transferring money to a bank account or cross-border transactions. Users need to pay attention to the relevant fee information when using PayPal.

Yes, PayPal offers an easy-to-use mobile app that supports major operating systems. Users can manage accounts, view transactions and make payments from anywhere on their phones.

Users can contact PayPal customer service through the contact information provided on PayPal's official website, such as live chat or telephone.