Mobile communications are not trustful as many people think about it. The IMSI catcher
device is one of the most effective threats that can compromise the security of mobile …

US10616200B2 - Methods, systems, and computer readable media for mobility
management entity (MME) authentication for outbound roaming subscribers using diameter …

Methods, systems, and computer readable media for validating subscriber location
information are disclosed. One method occurs at a network node. The method includes …

A method for validating UE location includes receiving, at a network gateway, a signaling
message for updating a location of a UE with a mobile communications network. A first …

US10237721B2 - Methods, systems, and computer readable media for validating a redirect
address in a diameter message - Google Patents US10237721B2 - Methods, systems, and …

A method includes maintaining a VLR validation database accessible by an SS7 STP and
receiving, by the STP, a MAP SAI request message. The method also includes determining …

Methods, systems, and computer readable media for net work node validation are disclosed.
One method occurs at a first network node. The method includes receiving, from a second …

A method includes receiving an ingress Diameter message related to a mobile subscriber
from a MME located in a non-home network, sending a RIR message containing a mobile …

Roaming spoofing attacks can be initiated during N32-c handshake procedure used for inter-
PLMN communication in 5G network. One example solution described herein uses the …

(57) ABSTRACT A method for mitigating a 5G roaming attack using a security edge
protection proxy (SEPP), includes receiving, at an SEPP, user equipment (UE) registration …