A cyberattack is an offensive attempt, often by an anonymous individual or group, to steal, alter, or destroy a target's information. Cyberattacks are also used to damage or destroy a computer device, network, or system.

Attacks on fiber-optic Internet cables in California may have been coordinated
Investigators lines have been cut 11 times since last July
NSA director: Don’t be so quick to blame China for OPM cyberattack
Meanwhile, anonymous officials attribute the attack to China.
Obama demands better U.S. cybersecurity in wake of major OPM breach
But critics worry that cybersecurity bills could be used as cover for more surveillance.
1.1 million Blue Cross Blue Shield members hit in cyberattack on CareFirst
Neither Social Security numbers nor any financial information was stolen, they say.
Student arrested for hiring people to DDoS his high school
It's still unclear whether his goal was pure mayhem or something else.
How the U.S. government is leaving us vulnerable to cyberattacks
Is the government shooting itself in the foot by being stingy?
Your complete guide to the 5 cybersecurity bills in Congress
What's the difference between CISA and CISPA? Here's what you need to know—and a whole lot more.
Mystery hackers take down state government sites
The operation appears to boil down to malicious mischief.
FBI posts $3 million reward for most-wanted hacker
The suspect is said to be responsible for over $130 million in theft.
Obama snubbed by major tech CEOs at cybersecurity conference
Facebook, Google, Yahoo snub the chief executive.
Obama creates new government agency to coordinate sharing of cyber threat data
No more intelligence failures—at least, that's the hope.
How will healthcare providers protect against hacks?
If last year was the year of the data breach, 2015 might be the year the healthcare hack takes center stage.