OnGuardOnline.gov provides practical tips from the federal government and the technology industry to help you be on guard against Internet fraud, secure your computer, and protect your personal information.
Learn About...
Get Email Alerts
Get free alerts from Homeland Security's U.S. Computer Emergency Readiness Team.
Word of the Day
Extended Service Set Identifier (ESSID)
The name a manufacturer assigns to a router. It may be a standard, default name assigned by the manufacturer to all hardware of that model. Users can improve security by changing to a unique name. Similar to a Service Set Identifier (SSID).






