A method of secure transfer of local private encoding data between a first communication device of a user and a second communication device of the user to securely communicate with a communication device (CD-B) of another user; - the first communication device having local private encoding data and being adapted, by means of the local private encoding data, to securely communicate with a communication device (CD-B) of another user; - the second communication device initially not having the local private encoding data and, thus, initially being not adapted for secure communication with the communication device (CD-B) of the other user; - the first communication device and the second communication device being operable to communicate with each other via a communication connection there between, - the local private encoding data being at least one of a private encoding key and/or a symmetric encoding key; wherein the local private encoding data is private encoding data locally stored in a communication device and thereby enabling the communication device to securely communicate with a device of another user and - the private encoding data is logically associated to the user of both first and second communication devices (CD1; CD2), the method comprising - providing secure access information by the second communication device; wherein the secure access information includes a public encoding key; - transmitting the secure access information from the second communication device to the first communication device via a first secure communication path; - establishing, by the first communication device, based on the secure access information, a secure communication link between the first communication device and the second communication device on the communication connection between the first communication device and the second communication device; - verifying, by the first communication device, the secure communication link by means of verifying identification information provided by the second communication device; and - transferring the local private encoding data, being located at the first communication device of the user from said first communication device to the second communication device of the user via the secure communication link on the communication connection to enable secure communication, by means of the transferred local private encoding data, between the second communication device of the user and the communication device (CD-B) of the other user. - the first communication device having local private encoding data and being adapted, by means of the local private encoding data, to securely communicate with a communication device (CD-B) of another user; - the second communication device initially not having the local private encoding data and, thus, initially being not adapted for secure communication with the communication device (CD-B) of the other user; - the first communication device and the second communication device being operable to communicate with each other via a communication connection there between, - the local private encoding data being at least one of a private encoding key and/or a symmetric encoding key; wherein the local private encoding data is private encoding data locally stored in a communication device and thereby enabling the communication device to securely communicate with a device of another user and - the private encoding data is logically associated to the user of both first and second communication devices (CD1; CD2), the method comprising - providing secure access information by the second communication device; wherein the secure access information includes a public encoding key; - transmitting the secure access information from the second communication device to the first communication device via a first secure communication path; - establishing, by the first communication device, based on the secure access information, a secure communication link between the first communication device and the second communication device on the communication connection between the first communication device and the second communication device; - verifying, by the first communication device, the secure communication link by means of verifying identification information provided by the second communication device; and - transferring the local private encoding data, being located at the first communication device of the user from said first communication device to the second communication device of the user via the secure communication link on the communication connection to enable secure communication, by means of the transferred local private encoding data, between the second communication device of the user and the communication device (CD-B) of the other user.