The process of converting information into a secret code so that only authorized people can read it.
From *encrypt* + *-ion*, a suffix forming nouns of action. *Encrypt* comes from *en-* and *crypt* ('hidden'), from Greek *kryptos*. So encryption is the act of 'making hidden.'
Encryption is like whispering in math instead of sound. Every time you send a message, buy something online, or unlock your phone, encryption is quietly running a secret show behind the scenes.
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