Dutch government websites were paralysed for several hours overnight after a mass cyber attack which targeted several ministerial sites, a spokesman said on Wednesday.
A series of brazen cyberattacks on America's most high-profile media outlets has revived concerns over Chinese hackers, who analysts say are likely linked to the secretive Beijing government.
The Pentagon unveiled a new medal on Wednesday to honor "extraordinary" troops who launch cyber attacks or drone strikes from their consoles, even if they do not risk their lives in combat.
Wells Fargo's website was experiencing problems Wednesday, after a threat against US banking firms from a group pledging retaliation for an online video that has sparked unrest in the Muslim world.
Cheon Joon-Sahng may not look like an elite warrior, but the shy, South Korean high school student has been fully trained for a frontline role in any future cyber battle with North Korea.
The Washington Post disclosed Saturday that it had suffered a cyberattack and suspects Chinese hackers were behind it, joining Twitter and major US media outlets that have endured intrusions.
A new study shows computer network security analysts are not prepared for drawn out cyber attacks.
North Korea on Friday accused the United States and South Korea of carrying out a "persistent and intensive" cyber attack against its official websites in recent days.
As head of the FBI's cyber crimes division, Shawn Henry often had to deal with exasperated company executives after his agents informed them that their networks had been hacked and their secrets pilfered.
The United States faces a mounting danger from cyber attacks on its infrastructure while digital espionage threatens to undercut the military's technological edge, the intelligence chief said Tuesday.