The US Department of Energy on Monday confirmed it was the target of a cyber attack in January, which stole employee and contractor data, but said no classified data was compromised.
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 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.
Iran has denied US media reports it carried out cyber attacks on US banks, the official IRNA news agency said Friday, quoting a statement from Tehran's UN mission.
US financial institutions are being pounded with high-powered cyber attacks that some suspect are being orchestrated by Iran as payback for political sanctions.
Oil giant Saudi Aramco said on Sunday that an August cyber attack on its computer network targeted not just the company but the kingdom's economy as a whole.
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.
A new study shows computer network security analysts are not prepared for drawn out cyber attacks.
A British student went on trial in London on Thursday accused of a series of cyber-attacks by the hacking group Anonymous that cost the US online payments giant PayPal millions of dollars.
Israel admitted Sunday it has been targeted in a mass cyber-warfare campaign that has witnessed millions of attempts to hack state websites since the start of its Gaza offensive four days ago.