An device with an unknown MAC address is connected to my router
- by Yar
There is a computer that is not mine that is accessible on my network. I can even access its filesystem via AFP. What I want to know is how the computer could get on my network. My network is secured like this:
Does that mean that they've used password cracking tools? The pass is not easy to guess but not hard to figure out via brute-force hacking, I guess. 
If I am being hacked, should I switch to WPA?