A system and a method for conducting credit card transactions through a mobile device of a user. The mobile device comprises an image acquisition unit and a mobile application operated by the mobile device. The system enables acquiring an image of a client's credit card, using the image acquisition unit; analyzing data of the image; outputting details of the credit card from the analysis; verifying the output details, wherein the verification is further carried out through the mobile application; verifying authorization of inputted monetary transaction, wherein the mobile application enables verifying the authorization by communicating with the billing center, associated with at least one credit company associated with the credit card over at least one communication network, wherein the communication is carried out by the mobile application using the mobile device; and conducting monetary transactions using the verified credit card details.