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Apple says users of its OS X operating system are "safe by default" from the new security vulnerability, which has been described as bigger than Heartbleed.
Hackers infiltrated the US government's healthcare portal, but did not steal any data uploaded by customers.
While Microsoft has yet to issue a permanent patch for a known exploit, the code could become widely available to cybercriminals after being integrated into an open-source testing tool.
The most popular home wireless routers are easily hacked and there's little you can do to stop it, says a new study by research firm Independent Security Evaluators.
Security researchers say that the danger stems from widely used technology found in routers and other standard networking equipment.
Researchers say a previously unknown hole in IE has already been used to deliver a trojan in real-world attacks.
With no fix available yet, Microsoft has a few words of wisdom for users who don't want to be bit by the newly-discovered bug.
Whether they're jamming crushed Altoids mints into screw holes or prepping themselves to swallow Micro SD cards, some travelers are now going to extreme lengths to defend against foreign snoops.
The company's initial investigation hasn't yet turned up any breach of security in its systems related to the reported hacking of millions of user passwords. Which could be worrying in itself.
The International Telecommunications Union is set to warn nations about the threat of the virus that has already hit Iran and parts of the Middle East.