Certified Incident Handler (CIH) Practice Ecam

How can mobile users protect their devices against security incidents effectively?

1. Never connect two separate networks such as Wi-Fi and Bluetooth simultaneously

2. Regularly change device wallpaper

3. Use public Wi-Fi networks for sensitive transactions

4. Install multiple antivirus apps

The correct answer is: Never connect two separate networks such as Wi-Fi and Bluetooth simultaneously

The choice to avoid connecting two separate networks, such as Wi-Fi and Bluetooth, simultaneously is rooted in the principles of network security. When both connections are active, they could potentially open additional vectors for attack, as the device becomes more exposed to threats from various sources. For example, while connected to Wi-Fi, if Bluetooth is also active, a malicious actor could seek to exploit vulnerabilities in Bluetooth settings or services to gain unauthorized access or carry out attacks on the device. Moreover, mobile devices can serve as gateways between different networks, and when both networks are active, it becomes harder to monitor and control the flow of information effectively. This layered exposure can lead to data leaks, hacking incidents, or unauthorized access to sensitive information. Therefore, ensuring that only one network connection is in use at a time can minimize the risk of security incidents significantly. In contrast, changing device wallpaper, using public Wi-Fi for sensitive transactions, or installing multiple antivirus apps do not effectively advance the security posture of mobile devices against security incidents. Regular changes in wallpaper are purely aesthetic and have no impact on security. Public Wi-Fi, despite its convenience, often lacks proper security measures, making it an unreliable choice for sensitive activities. Lastly, while antivirus apps can provide protection, having multiple antivirus