How to Check the Integrity of a File?

What is File Integrity?

If you are familiar with IT security, you must have heard CIA triad: a security model that covers different parts of IT security.

Being one member of CIA triad, file integrity refers to the processes and implementations aiming to protect data from unauthorized changes such as cyber attacks. A file’s integrity tells if the file has been altered by unauthorized users after being created, while being stored or retrieved.

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