AT&T just brought the internet into my new business. The default router they use has wireless which they left turned on with just WPA protection despite it havi

AT&T just brought the internet into my new business. The default router they use has wireless which they left turned on with just WPA protection despite it having an option for WPA2. There will be WPA systems aplenty for some time. (I turned the wireless off and blew open the firewalls. I only want packets to come and go through their router. I'll do the rest with systems I trust.)