1. A method for processing cellular radio data, implemented by computer means including a security module, wherein said security module included in a terminal that is in a mobility situation: receives a current cell identifier, compares the current identifier with an identifier previously stored in memory, the security module being adapted to generate a notification for a remote server when there is a difference between the current identifier and an identifier previously stored in memory, and wherein the security module stores in memory a list of current identifiers of respective cells in which the terminal is successively located, wherein said security module, upon reception of a current cell identifier, compares the current identifier to identifiers of said stored list and: when the current identifier is absent from said stored list, then the security module adds the current identifier to said stored list, and generates said notification for the remote server, when the current identifier is already in said stored list, then the security module does not add the current identifier to said stored list, and does not generate said notification for the remote server, and wherein a notification sent to the server comprises the current cell identifier, allowing the server to compare a current location of the terminal, corresponding to the current cell identifier, to a predetermined location, and to execute an alert routine if the current location does not satisfy a chosen criterion relative to the predetermined location.