Method for providing service personalisation data between a terminal and a device , the device being located in the immediate proximity to a user who is the holder of the terminal and capable of communicating with the terminal : - over a first channel (IBC) in near field (NF) using the electromagnetic wave conduction capabilities of a body of said holder of the terminal , and: - over a second, wireless channel (BLE) distinct from the first channel (IBC), the first channel being unidirectional and the method comprising, on the terminal, the steps of: A. obtaining (E1) a first message (M1) over the first channel, said message comprising at least one random datum (ALEA) when said holder of the terminal performs a movement to enter the immediate proximity of the device ; B. transmission (E4), over the second channel (BLE), of a second message (M1_OK) in response to the first message (M1); C. establishing (E5, E6) a communication session over the second channel (BLE) with the device; D. computing (E8) a secret datum (f(ALEA)) as a function of the random datum (ALEA) received; E. transmission (E8) of the secret datum (f(ALEA)) over the second channel; F. reception (E9) of a request (RQ_PR) for a personalisation datum (PR) over the second channel; G. transmission (E10) of at least one personalisation datum (PR) in response to the request. - over a first channel (IBC) in near field (NF) using the electromagnetic wave conduction capabilities of a body of said holder of the terminal , and: - over a second, wireless channel (BLE) distinct from the first channel (IBC), the first channel being unidirectional and the method comprising, on the terminal, the steps of: A. obtaining (E1) a first message (M1) over the first channel, said message comprising at least one random datum (ALEA) when said holder of the terminal performs a movement to enter the immediate proximity of the device ; B. transmission (E4), over the second channel (BLE), of a second message (M1_OK) in response to the first message (M1); C. establishing (E5, E6) a communication session over the second channel (BLE) with the device; D. computing (E8) a secret datum (f(ALEA)) as a function of the random datum (ALEA) received; E. transmission (E8) of the secret datum (f(ALEA)) over the second channel; F. reception (E9) of a request (RQ_PR) for a personalisation datum (PR) over the second channel; G. transmission (E10) of at least one personalisation datum (PR) in response to the request. A. obtaining (E1) a first message (M1) over the first channel, said message comprising at least one random datum (ALEA) when said holder of the terminal performs a movement to enter the immediate proximity of the device ; B. transmission (E4), over the second channel (BLE), of a second message (M1_OK) in response to the first message (M1); C. establishing (E5, E6) a communication session over the second channel (BLE) with the device; D. computing (E8) a secret datum (f(ALEA)) as a function of the random datum (ALEA) received; E. transmission (E8) of the secret datum (f(ALEA)) over the second channel; F. reception (E9) of a request (RQ_PR) for a personalisation datum (PR) over the second channel; G. transmission (E10) of at least one personalisation datum (PR) in response to the request. <EOS>