Well the only serious security threat I can think of is of infringement. The perpetrator can enter your unsecure wireless network and perform illegal activities, under your IP address. Thus, you'll be liable for in lawsuits even though you're not at fault. Common illegal practices include music download, movie download, file-sharing, etc.WPA/WEP encryption makes it hard for average users to get into your network. The MAC address adds another security layer, but even that's not enough to stop an experienced hacker. However, home networks aren't usually the targets of hackers.Here you will get more information about Empower Network.