What is Cyber Security?

Cyber security is an essential part of national and homeland security that is responsible for the defense of computers, networks, and data. Ensuring the security of cyberspace has become absolutely crucial as technological advances have changed the way we live our lives. For example, even our access to electricity is controlled through cyberspace. Our energy distribution grid (or simply “energy grid”) is controlled through computers, which makes it a target for cyber-attacks. A successful cyber-attack on the energy grid could lead to mass blackouts. A blackout of this level is not only an inconvenience, but could be highly dangerous; traffic lights would go out, there would be no a/c or heating in extreme weather conditions, and a power outage leaves places such as hospitals dependent on their finite supply of back-up generator power. Between 2013 and 2014, there were 224 hacking incidents at energy companies. Banks, airlines, large corporations, small businesses—even the federal government are all potential targets for hackers to attack. As we move into the cyber age, the need for an impenetrable cyber defense has become imperative.

“We need to educate any and all who transmit through cyberspace that their transmissions can be, and probably are being, intercepted for intelligence– or perhaps just for information damaging to the sender.” General Frederick J. Kroesen

The Department of Homeland Security’s webpage on cyber security

What is Personal Security (Next Security Section)