SoftPerfect WiFi Guard is a great app for tracking strangers and various devices on your local network. Modern Wi-Fi networks are generally well protected, but there are a number of weak points that can compromise your Wi-Fi password; these include encryption vulnerabilities and brute force attacks. As a result, someone can gain unauthorized access to your Internet connection and local network and use them without being noticed.
WiFi Guard will warn you if your network is being used without your knowledge.
When launched, the application scans the network and marks all devices in green or red, which means a known or unknown device, respectively. The list of known devices can be expanded. You can also set up a notification when unknown devices connect to the network. The network scanning interval is customizable.
But the main highlight of SoftPerfect WiFi Guard is that the application can be used not only for protection, but also for attacking unknown devices. Just immediately after the notification about the connection of a freebie lover, we launch a traffic sniffer, start collecting cookies and other confidential information.