What is information security? Definition, principles, and jobs

By GIXnews

Information security definition

Information security, sometimes abbreviated to infosec, is a set of practices intended to keep data secure from unauthorized access or alterations, both when it’s being stored and when it’s being transmitted from one machine or physical location to another. You might sometimes see it referred to as data security. As knowledge has become one of the 21st century’s most important assets, efforts to keep information secure have correspondingly become increasingly important.

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The SANS Institute offers a somewhat more expansive definition:

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Source:: IT news – Security