A management process for access to secure data includes: storing secure data associated with a first user and authentication data of said first user, managing access to the secure data of the first user, as a function of the authentication data of this first user. The process includes: storing, in the secure data of the first user, a heritage rule and a list of at least one second user and, for each second user of said list, an rule for access to secure data of the first user, storing authentication data for each second user of said list, and when the heritage rule is satisfied, managing access, by said at least one second user, to the secure data of the first user, as a function of the authentication data of the second user and of the rule for access of the second user.