Question

Which method is used to make data unreadable to unauthorized users?

Answer 1

Encryption :The conversion of data into a format that is not readable by unauthorized users for security purpose is called as encryption.

Encryption = Plain text -> Cipher text.

The conversion is done using a cryptographic algorithm.

Only the authorized users know how to decipher the text and read it.

So, encryption can be used.

Answer 2

Encryption method is used to make data unreadable to unauthorized users.

It is a process in which an algorithm is used to transform the information into an unreadable format for the unauthorized users.

The cryptographic method can protect sensitive data i.e. credit card and ATM card numbers by encoding the information into cipher text.