Some 75 million people use the online cloud-based service Evernote to store everything from notes, photos, clips and personal data. But, the convenience clients had become accustomed to when using this site was disturbed in early 2013. That's when the company required all 50 million of its users to reset their passwords after an intrusion - described as the beginning of a sophisticated attack - was discovered. Fortunately, a major breach was averted.
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