A method and a security module configured to enforce processing of management messages. The security module is associated to a multimedia receiver configured to receive broadcast access controlled multimedia services. The management messages are transmitted by a managing center to the multimedia receiver. The method comprises steps of: receiving by the security module at least one global management message addressed to a plurality of multimedia receivers operated by the managing center, tracing processing of said global management message, receiving at least one positive addressing management message addressed to said security module, checking, by the security module, anterior processing of the global management message through the value of the parameters set during tracing processing of the global message, processing the positive addressing management message only if previous checking gives a result indicating a successful enforcement of the global management message allowing the multimedia receiver accessing the broadcast multimedia services.