Communications device, infrastructure equipment, core network equipment and methods

A communications device for use in a wireless communications network, the wireless communications network comprising an infrastructure equipment providing a wireless access interface and a core network, the communications device comprising

• a transmitter configured to transmit signals via the wireless access interface,
• a receiver configured to receive signals, and
• a controller configured to control the transmitter and the receiver so that the communications device is operable:
• to determine whether one or more predetermined conditions associated with a security function are met by determining whether the security function is to be enabled for communications with the communications device in the cell, and
• if the one or more predetermined conditions are met, to transmit a security status indication to the core network, the security status indication indicating whether the security function is to be enabled for communications with the communications device in the cell.

Infrastructure equipment for use in a wireless communications network comprising a core network, the infrastructure equipment providing a wireless access interface, the infrastructure equipment comprising

• a transmitter configured to transmit signals to a communications device via the wireless access interface in a cell,
• a receiver configured to receive signals from the communications device, and
• a controller, configured to control the transmitter and the receiver so that the infrastructure equipment is operable:
• to determine whether one or more predetermined conditions associated with a security function are met by determining whether or not the security function is to be enabled for communications with the communications device in the cell, and
• if the one or more predetermined conditions are met, to transmit a security status indication to the core network, the security status indication indicating whether or not the security function is to be enabled for communications with the communications device in the cell.