Security of the payment method has nothing to do with Bitcoin. If you use a credit card for your payment though you get a chargeback protection from the credit. Letters of Credit (LCs) are one of the most secure instruments available to international traders.}. See the pros and cons of each payment method. secure and up to date, but what about the method of payment you use when shopping also a good option for online shopping (PayPal is the most popular payment method. It's essentially a surrogate for the actual number. IMO BETA Free Video Calling App. Early reviews peg it as easy to use and incredibly convenient. Both buyer and seller are being a little absurd. Log in or Sign up. He could get a legit cashiers check and copy it 5 times.