What are two reasons mobile devices are particularly vulnerable to security threats?

Mobile devices are particularly vulnerable to security threats for a couple of significant reasons. First, the nature of their mobility means they often connect to various networks, many of which can be unsecured, such as public Wi-Fi hotspots in cafes, airports, or other public locations. This exposure increases the risk of interception by malicious actors.

Second, mobile devices are designed to be "always-on," which facilitates convenient access for users but also makes them consistently reachable by potential attackers. This constant connectivity can lead to various types of attacks, such as man-in-the-middle attacks, where an attacker can intercept communications between the user and a legitimate service.

In contrast, other factors listed, such as low battery capacity and poor user interfaces, do not directly contribute to their vulnerability regarding security threats. Moreover, while some mobile devices may lack certain advanced security features or compliance measures, it's not accurate to generalize that all mobile devices reside in a compliant environment. Finally, the claim that mobile devices only operate within Wi-Fi networks is incorrect; they also use cellular networks, which further broadens their connectivity and associated risks.