Method and system for protecting data, related communication network and computer program product

A method for securely storing at least one user's private information item, such as a private key for cipher processing, includes the steps of providing a communication network wherein the user is allotted a respective subscriber identity module and the subscriber identity module stores at least one security algorithm; producing a cipher key via the at least one security algorithm; and providing a remote storing location accessible by the user via the communication network wherein the user's private information items are stored as files encrypted via the cipher key.