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Why hackers may be stealing your credit card numbers for years

Hackers may have the upper hand for years as the retail industry slowly upgrades its systems, analysts said

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CryptoWall ransomware held over 600K computers hostage, encrypted 5 billion files

The gang behind this dangerous ransomware program has earned US$1 million so far, researchers from Dell SecureWorks said

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What happens when Microsoft ends Windows 7 mainstream support next year

Next January, Microsoft will end mainstream support for Windows 7. But relax. That won't be end of the popular operating system.

Mozilla accidentally left email addresses, passwords of 97k Bugzilla users out in the open

It's the second database exposure incident reported by the organization in a month, but the passwords were encrypted.

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Security vulnerabilities on the decline but risk assessment is often flawed, says IBM

The number of vulnerabilities could reach a three-year low in 2014, but correctly assessing their risk can be hard, IBM researchers said

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Enthusiast developer keeps Windows XP alive with unofficial 'Service Pack 4'

Support for the 13-year-old operating system lives on without Microsoft's blessing.

PlayStation Network back online after massive denial of service attack

The group that claimed responsibility for the PlayStation DDoS attack also diverted the flight of a Sony executive with a fake bomb scare.

Mobile apps could be abused to make expensive phone calls

Mobile applications often don't warn users before a call is made, which a developer says could be abused

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Inside the sneaky, surprisingly large world of rogue Chrome extensions

A study of 48,000 Chrome extensions uncovers ad fraud, data theft and other misdeeds

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Symantec folds nine Norton products into one service

A single product, Norton Security, can be used across Windows, OS X, Android and iOS.