An alarmed closable packaging for a container of goods has at least two sections whose edges have closure elements and which, once in contact, completely envelop and seal the container of goods. The multilayer sections have first and second electrically conductive layers with an insulator between. The insulator recovers its thickness after having undergone crushing. Each section has a support with conductive attachments connected to respective conductive layers. Each section has an electronic device attached by the support, an electrode of the electronic device contacting conductive attachments of the support, creating a low continuous voltage on the first electrically conductive layer of each section, with another electrode similarly connected to the second electrically conductive layer. The electronic device transmits a signal to a receiver and records variation of the voltage from impacts or tears of the closable packaging or to an unauthorised removal of the device from its support.