The Ultra Wide Band (UWB, ultraband) is a new wireless communication technology with great potential for growth that developed in the 1990s, it was listed as one of the ten communication technologies in the future. Compared with traditional cutoff frequency (corner/break frequency) communication systems, it came up with many obvious characteristics (very wide bandwidth, high speed of data transmission, low power consumption, high safety performance, and so on).
Today, wireless network has got very extensive application because of its convenient use and structure, and will eventually cover every corner on the earth, I believe. But due to its broadcast form of data transmission in a wireless network environment, that will inevitably lead to security issues. Of course we can ensure data security by setting different encryption methods in a wireless router, but some loopholes of Wi-Fi network or the router itself can often make every trained hacker be able to crack/hack it.
If someone says you want to use this kind of tool to verify the security of passwords or recover them, that would be a joke, I think. After all, a rule for secure enough password is very simple - Uppercase + Lowercase + Number+ Symbol (and > 8 characters), there is no need of any tool to validate it at all. The same for wireless network password, restoring it is meaningless - just reset the router to default, which is the most efficient way. So, obviously they are designed for passwords cracking only.