The linksys routers come ready to go, plug into the wall then plug your dsl cable in and your ready to go. Defauly SSID on channl 6, default everything. I've frequently fixed friends' and families' Verizon-installed routers that still use the default passwords, and weak WEP encryption. Nobody thinks about what it means. It's like using a zip-tie to lock your car up. It's closed, but not safe. That was very nice of you to tell the owner. I hope none of those other people had malicious intents.