Data encryption is a software security method that allows a user to secure the data or document by hiding or converting data into unreadable code and is allowed to be accessed only by the receiver by decrypting the code. It helps in securing data as other users will not be able to access data until the user has the code to decrypt it.
The purpose of data encryption is to protect digital data confidentiality as it is stored on computer systems and transmitted using the internet or other computer networks.