Purchases on viettishop.com are sefety. Online payment by credit card is completely risk free. The information about payment are coded during the transmission and managed directly by The PayPal or the Bank.
In any case viettishop.com won't know your credit card number, use or conserve your information. viettishop.com only receives communication about the positive ending of payment.
In order to guarantee the best safety of your purchases, the information about payments are coded by SSL protocol (Secure Socket Layer)