The anti-ISIS New World Hackers group performed a cyber attack live on-air.
Alonzo Knowles, 23, allegedly offered to sell the stolen content to an undercover federal agent.
Infiltration raised concerns about security of U.S. infrastructure, Wall Street Journal says.
The social media company issues first-ever warning of hacking by "state-sponsored actors."
Keyboard warriors—official and otherwise—are trying to degrade and destroy ISIS's online propaganda efforts and expose its schemes.
The extremist group offer instructions to its members on how to avoid cyber attacks.
The hacking compromised information in 83 million household and small business accounts.
The online hackers said they will publish their list on Thursday.
The Associated Press said the attempted hacks appeared to have been thwarted by threat-monitoring product.
The concern is revealed in the latest batch of Clinton's emails released by the State Department.
Director of National Intelligence James Clapper said his approach will be to "trust but verify."
Malicious iPhone and iPad programs identified.
The Department of Homeland Security needs to secure its own information systems better, according to an audit released on Tuesday.
The company also struck back at reports that the site had few female users.
Noel Biderman reaches a mutual agreement with Avid Life Media to step down.
Brian Krebs says a Twitter user Thadeus Zu had a link to the data early.
This is what it's like to be named Ashley Madison in the age of massive data leaks.
There is a $500,000 reward for information leading to the arrest of people involved in the hack.
Motherboard interviewed the hackers who call themselves the Impact Team.
Cyber security experts confirmed a second release of data stolen from AshleyMadison.com's parent company, Avid Life Media.
Media outlets are grappling with how much information to report from the data dump of AshleyMadison.com users' sensitive information.
Hackers dump 9.7 gigabytes of data on dark web, including account and credit card details.