The invention is a method for managing a tamper-proof device comprising a plurality of software containers and an operating system. The operating system is able to handle a set of communication protocols with external entities. The operating system accesses a pairing data in which each communication protocol of said set has been associated with a single software container and upon receipt of a message from one of the external entities, the operating system uses the pairing data to route the message to the software container associated with the communication protocol used to convey the message.