Abstract: The method secures data of a bank card linked to a bank account. The data is static and includes the number of the card, the identification data of the holder of the card, the expiration date of the card, and a cryptogram. The bank card number and cryptogram include multiple digits and/or letters. The method includes inscribing only partially secure data on the card in such a manner that the data is concealed and never visible on the card. The concealed data is multiple digits and/or letters of the number of the card and/or at least an identification datum of the holder and/or at least one element of the expiration date and/or at least one digit and/or letter of the cryptogram. The method includes transmitting to the only cardholder a means for disclosing the concealed data.

Abstract: The invention relates to a self-lighting device for a cigarette, comprising a primary chemical material (7) to be placed at the lighting end (4) of the cigarette (1); and a secondary chemical material (8) that is incompatible with the primary material (7), said primary and secondary materials being inflammable when they come into contact with each other. The device is characterized in that the secondary material (8) is arranged in a receptacle (9) designed to fit over the lighting end (4) of the cigarette (1), bringing the secondary material into contact with the primary material (7).

Abstract: The invention relates to a self-lighting device for a cigarette, comprising a primary chemical material (7) to be placed at the lighting end (4) of the cigarette (1); and a secondary chemical material (8) that is incompatible with the primary material (7), said primary and secondary materials being inflammable when they come into contact with each other. The device is characterised in that the secondary material (8) is arranged in a receptacle (9) designed to fit over the lighting end (4) of the cigarette (1), bringing the secondary material into contact with the primary material (7).

Abstract: The invention relates to a cigarette provided with a self-lighting device comprising: a primary chemical material (7) placed at the lighting end (4) of the cigarette (1), and a secondary chemical material (8) that is incompatible with the primary material (7), said primary and secondary materials being inflammable when they are in contact with each other. The secondary material (8) is contained in a receptacle (9) initially arranged at one of the ends of the cigarette, in an arrangement preventing said secondary material and said primary material (7) from coming into contact, and said receptacle is removable and configured in such a way as to be positioned against the end (4) to be lit, in an arrangement enabling the secondary material (8) to be brought into contact with the primary material (7), the receptacle being initially fixed to the end (5) opposing the end to be lit (4).