A telecommunication method for securely accessing user data

The present disclosure relates to a telecommunication method for securely accessing user data in a telecommunication system, the telecommunication system comprising a mobile telecommunications device; the mobile telecommunication device comprising a processor and memory; wherein the memory stores a plurality of mobile applications that are executable by the processor; each mobile application of the plurality of mobile applications comprising instructions that when executed cause the processor to connect to a respective electronic device of the telecommunication system for requesting a service to the electronic device, wherein the electronic device is adapted to send a response to the service request using a first user identification address assigned to a user of the mobile application, the electronic device comprising one of a terminal, server and automated vending machine. The method comprises providing a backend server of the telecommunication system, wherein the backend server is connected to the mobile telecommunication de-vice via a first cellular digital telecommunication network, the backend server being connected to the plurality of electronic devices via at least a second network.