The present disclosure relates to mobile communications technologies, and in particular, to a mobile communication method, apparatus, and device. The method includes receiving, by user equipment (UE), a non-access stratum (NAS) security mode command message from a mobility management entity (MME), where the NAS security mode command message carries first verification matching information used to verify UE capability information received by the MME, determining, by the UE based on the first verification matching information, whether the UE capability information received by the MME is consistent with UE capability information sent by the UE to the MME, and, if the UE capability information received by the MME is consistent with the UE capability information sent by the UE to the MME, sending, by the UE, a NAS security mode complete message to the MME.