Abstract: Methods and systems for securing a prospective electronic transaction between a first party and a second party. The system comprises an authentication entity adapted for generating a transaction indicia for the electronic transaction and sending the transaction indicia to the client computer, wherein receipt of the transaction indicia by a client computer used by the first party causes encryption of the transaction indicia and account information associated with the first party into encrypted data. Also, the system comprises a data center adapted for receiving the encrypted data from the client computer; decrypting the encrypted data to obtain the transaction indicia and the account information associated with the first party; and sending the transaction indicia and the account information to the authentication entity for completion of the electronic transaction on a basis of the account information.