I just accepted a position at a small firm and was testing the previous WiFi setup for flaws and exploits that were possible. We have two AP's for business and guest connections, everything checks out on the guest (Free WiFi). But I just found a note (probably left by my previous positions tech), that has the business AP's MAC address, IP, and Port in plain sight in the lobby.
So my question is what attacks or exploits could have been possible during this time?
Business AP uses Mac address filtering, and I'm aware of MAC spoofing as a probability. Any others?