How does pay pal work?

PayPal is an online service that safely allows you to purchase something online without having to give everyone your credit card information. PayPal acts as an intermediary for buying or selling. You set up an account, which will be linked to your credit card or bank account. When you buy something and the seller accept PayPal, the service pays for the item, withdrawals the amount and deposits it into the other person's account, and they will not know your bank account or credit card number.