A method and system for notifying a security context to an electronic device for inter radio access technology mobility is provided. The method includes establishing the inter radio access technology mobility for the electronic device by a core network node. The method also includes determining a security context for the electronic device based on the establishing by the core network node. Further, the method includes transmitting an indication of the security context to the electronic device based on the determination. The system includes a core network node to determine the security context for the electronic device. The system also includes a source radio access network node to transmit an indication of the security context to the electronic device and the electronic device using the security context for the inter radio access technology mobility.