A Google spokeswoman said the company disagrees with the "FCC’s characterization of our cooperation."
In Tuesday's tip sheet, the FCC encouraged consumers to turn on encryption, activate a router firewall and use a strong password for their router.
The agency noted that consumers have little control over security setting if they are using a public Wi-Fi network. So the FCC recommended that people not transmit sensitive information over public networks and that they only log on to secure sites.
"Wi-Fi networks are powerful, valuable tools in our modern communications and information society, enabling users to connect wirelessly to the Internet by extending broadband service in your own home, or by connecting to 'hot spots' in public spaces, like airports, coffee shops and hotels. In using these networks, however, it is important to understand that information being transmitted over them can potentially be intercepted if the networks are not secure," the FCC said in a statement.