PayU Vault is the most secure solution available commercially, as of now. It stores card details securely, using special hardware which encrypts it. A token is shared with the merchant corresponding to this card number as a result of which their security requirements are removed. Even if this token is compromised, nobody can know the actual card details because we do not reveal it even to the end user as they are shown only a part of the details- the last 4 digits of the card number.
Furthermore, we only store card numbers and expiration dates. The CVVs and passwords still need to be entered. Thus, a transaction cannot be completed without the actual user approving it. In order to make the repetitive purchase a single click job, it gives your customer an option to store the card details in ‘PayU Vault’ which is a hardware that encrypts the card details through a key management system. The ‘PayU buying experience’ makes sure that your customers remain with you, engage in the repetitive purchase and hence the customer loyalty is enhanced to a great extent.