Valve claims there was no unauthorised action on any user's account.
Microsoft's policy shift to specify an attack's origin follows similar moves by Twitter, Facebook and Yahoo.
Users greeted with error message instructing them to "try again later when we have fixed the problem".
AVG's Web TuneUp extension for Chrome contained a flaw that left millions of users' personal data vulnerable.
Company outlines new policy toward varied forms of abuse, and terrorism.
Adultery website's membership has grown 11% to 43.4 million.
iPhones have detailed parental control restrictions, while Android phones are not as thorough.
Collecting data logs of students allows Google to analyse their online behaviour.
The database would represent more than the active registered voters, which numbers 142.2 million.
The new law is expected to come into force from January 2016.
Scores of Turkey's financial and government websites hit by DDoS attacks.
Kaspersky says more than 50,000 corporate PCs were affected by cryptolocker attacks.
Mimecast claims there is a sudden surge in whaling attacks over the past three months.
Internet company said it would alert users whose accounts may have been targeted
The hack has affected only those properties that are managed by Hyatt.
Hello Kitty owner claims no sensitive information of its members was stolen.
Man arrested after hacking hundreds of celebrity accounts and trying to sell scripts and explicit images.
New Microsoft adware policy could prevent another Superfish security scare.
Hacktivist collective threatens to take down Turkey's banks, military services and government facilities.
New laws could be more complex and costly for businesses, it is feared.
Apple expresses concern over Britain's investigatory powers bill.
Cybersecurity expert John McAfee believes the internet is the soft underbelly of the Western world.
Obstructable claims responsibility for defacing Phantom Squad.
Sony and Microsoft have not improved their server security much, says Lizard Squad member.
Hacking group says attack intended to draw attention of Microsoft and Sony to 'apparent' security flaws.
Members of Phantom Squad declare they will launch a DDoS attack on PSN and Xbox Live this Christmas.
Exclusive: Guardtime has partnership with Future Cities Catapult, a UK-based centre for smart city innovation.
The president says the internet should be regulated to protect countries' core interests.
Security expert Graham Cluley advises users to ignore such letters and report them to authorities.
TalkTalk revealed that it received a ransom demand following the cyberattack.