The company has notified customers of criminal "intrusion" of its network. Albertsons stores, among others previously owned by Supervalu, are also affected in a related breach.
In what "has all the markings of a state-sponsored attack," government contractor US Investigations Services reveals the probable theft of government employees' personal information.
Nearly half of all Internet attacks came from China last quarter, says cloud provider Akamai. But some of the attacks could have been launched by people in other countries.
According to Ukraine's security service, members of the country's parliament, regardless of party affiliation, are being targeted in the attack.
Wurm Online, a massive multiplayer online role-playing game, has been down since a DDoS attack on Tuesday.
The hacktivist group claimed responsibility for the attack, which was in retaliation for PayPal's refusal to process payments for WikiLeaks.
The newspaper's domain name registrar says that someone took over a reseller account on Melbourne IT's systems to take down the Web site of The New York Times.
The New York Times Web site is down for the second time this month, and this time the paper says it's likely from a "malicious external attack."
Community Health Systems is targeted in a massive cyberattack leading to stolen Social Security numbers and patient names and addresses. It's believed the attack originated in China.
In the wake of the shooting of unarmed teen Michael Brown, hackers launch a cyberattack to take out the police department's website and email.