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Encryption is a technique used to convert plaintext or other digital data from a readable form to an
encoded version. The plaintext is known as unencrypted data , which is encrypted using an
encryption algorithm and an encryption key. The encoded version of data cannot be decoded or

read by another entity unless they have access to its decryption key.
The user information that is protected through encryption method includes passwords, banking,
and payment credentials or any other information that is considered private and sensitive.

Biometric
Biometric is a security identification and authentication device. A

biometric device uses automated methods to authenticate a person’s
identity based on a unique physiological trait or characteristic. These
characteristics may include fingerprints, iris print, facial images, and
voice recognition. These characteristics of a person are first saved in a
database. Thereafter, a biometric device measures biological element of
a person to verify the identification. If the input matches with the
database, then a person is provided access to the system or to enter a specific premises.
Authenticating a person's identity using a biometric device requires the physical presence of that

particular person at the time of identification.

Password
You can protect sensitive and private information using passwords.
Password protected files cannot be accessed by any unauthorised
person. A password is a string of characters, which could include
letters, numbers, or special symbols. Passwords are used to
authenticate the user's access to any device or program. If the

password entered by a user matches the code saved in the database,
then the user has approval to access a file or a program.
The use of password ensures that the data is protected from unauthorised access. It is
recommended to use passwords which are easy to memorise, yet strong. Passwords are used for
many purposes, some of them are:

• Logging into online accounts, such as banking, email Id, social networking, and so on
• Accessing applications, database, or network

• Using ATM card to withdraw money or shop online

Backup
Backup is a copy of information or data stored in a computer which can help you to retrieve the
original data in case you accidentally lose it or if it gets infected by virus. It is recommended to
encrypt the data backup in order to provide a secure access to it.

Cookies

A cookie is a small file that is automatically sent by a website to the end user's computer through a
web browser whenever it is connected to the same website. It stores the user's specific data as a

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