The US-CERT is a part of US Homeland Security that deals with IT Security. Lots of information, alerts and good explanations: https://www.us-cert.gov/
Information about securing wireless home networks: http://www.wikihow.com/Secure-Your-Wireless-Home-Network
Excellent information from the IRS about choosing and protecting passwords: https://www.irs.gov/uac/What-You-Need-to-Know-to-Protect-Your-Passwords
Want to find out how hard your password would be for hackers to crack? https://howsecureismypassword.net/
