"This leak was just a glimpse of how deep we breached into Mandiant, we might publish more critical data in the future," 31337's Pastebin message reportedly warned.
A National Security Agency contractor named Reality Winner has been accused of leaking classified information about possible Russian interference in the US election to a news organisation.
The NSA's latest alleged leaker apparently had a variety of issues, including alcohol abuse and criminal charges, which did not cast doubt on his security clearance.
Harold T. Martin III, 51, who worked for Booz Allen Hamilton, was arrested after an FBI search of his home and car uncovered an abundance of highly classified documents, which Martin was not authorized to have
Security engineer Matt Bryant posted details of North Korea's registered domains after a misconfigured nameserver revealed details.
Dropbox hack of 68 million user account credentials has been confirmed by security researcher Troy Hunt and Motherboard. Company advising a swift change in passwords.
WikiLeaks' practice of delivering unfiltered information to its readers backfired after a researcher discovered that its collection of leaked Turkish government emails contained over 300 active links to malware files hosted on the controversial site.
A list of people suspected of links with crime and terrorism from due diligence company World-Check has been leaked online, reportedly by a former associate.
Hold Security has bought hundreds of millions of email credentials off the dark web for less than £1
The exclusive website was breached months ago and the information of over a million of its users has been sitting on the Dark Web ever since then.
The electoral details of the full voting public of Mexico have been leaked and published
Leaked information from the working group reviewing Privacy shield highlights scepticism from within the EU about whether the new privacy regime goes far enough
The names leaked from the email hack on Mossack Fonseca include many of the world's rich and powerful
Tencent, a major chinese web browser with millions of users around the world, has been found leaking data with which users can be identified, tracked and attacked.
The social media company Snapchat has been made the victim of a Whaling attack which resulted in private payroll information being released.
Last Friday it was reported that British pub chain JD Wetherspoon suffered a data breach causing a leak of more than 650,000 customer details; now the hacker responsible explains how easy it was.
JD Wetherspoon, the British pub outfit, suffered a leak of its customer details, affecting over 650,000 customers, four times more than the TalkTalk hack.
ICYMI: Windows deprecating SHA-1; Apps leaking data; Safe Harbour II; Auto-rooting adware; Apple Pay
In Case You Missed It: the most popular articles from the past seven days. Windows accelerates SHA-1 deprecation, Too many apps leaking personal data, Safe Harbour 2 coming soon, Apps auto-rooting Android devices, and Bank warning to Apple Pay users.
An estimated 70 million phone calls made by prisoners in the United States have been hacked and leaked to The Intercept.