PayPal has recourse if there is problems with the sale - like did not receive item, or was not correct. Over 20 years there have been 3 times someone did not ship and PayPal reimbursed the account. - no loss. As mentioned above, I link a bank account and backup credit card. I do not restock money in paypal from my account. All purchases are paid directly from the linked bank account. PayPal is a banking system, just as any other bank. I use online banking for everything, even with my local bank. I also DO NOT use a cell phone for banking business. I use my computer and all passwords are created and managed by LastPass. LP uses 2nd factor authentication with a otp (one time password). Safer than mailing a check.