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The anatomy of a ransomware attack

A threatening voicemail, research into company executives and finances, even step-by-step guides to using cryptocurrency. These are some of the evolving tactics of ransomware groups that have turned this cybercrime into a highly lucrative underground business. As CNN’s Clare Sebastian reports, businesses and law enforcement are racing to get ahead of them.

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Microsoft issues urgent security warning: Update your PC immediately

By Jordan Valinsky, CNN Business Microsoft is urging Windows users to immediately install an update after security researchers found a serious vulnerability in the operating system. The security flaw, known as PrintNightmare, affects the Windows Print Spooler service. Researchers at cybersecurity company Sangfor accidentally published a how-to guide for exploiting it. The researchers tweeted in

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Pentagon cancels $10 billion cloud contract given to Microsoft over Amazon

By Ellie Kaufman and Zachary Cohen, CNN The Department of Defense is canceling a controversial $10 billion cloud computing contract that had been awarded to Microsoft over Amazon under the Trump administration. The department announced Tuesday that it is canceling the Joint Enterprise Defense Infrastructure (JEDI) contract that was previously awarded to Microsoft. It will

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