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.
Information security vs. cybersecurity
Because information technology has become the accepted corporate buzzphrase that means, basically, “computers and related stuff,” you will sometimes see information security and cybersecurity used interchangeably. Strictly speaking, cybersecurity is the broader practice of defending IT assets from attack, and information security is a specific discipline under the cybersecurity umbrella. Network security and application security are sister practices to infosec, focusing on networks and app code, respectively.
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