Just decided to change my router's entry password and wifi access key and in the process, I spotted a bunch of unknown wireless devices.
Many have 192.168.1.xx numbers, so I guess these are mine, current and history. Some are recognizably neighbor's names, so no BFD there.
But there are few that don't fit either category, and it made me wonder whether there's any software that can identify intruders.
Obviously, a strong modem entry password, and a very strong wireless key would make for good security, but an app that tracks attempts to logon to my network would be useful.