1. Welcome
Topic : Security

2. Definition
Security refers to the protection of hardware, software, machines and networks from unauthorized access. Security measures include restricted access to machines and networks for certain employees or to prevent access by hackers. The degree of security of information systems largely determines society’s confidence in the information contained in the systems.

3. Ways to secure access of data

4. Authentication
Authentication is a process in which a user establishes his/her identity beyond reasonable doubt with a use of passwords, biometric data etc. Examples of biometric system may include fingerprint, retina scan, nose print, facial recognition. These data can be combined in a biometric template to provide better security.

5. Cryptography
The science of ciphers and encryption is called cryptography. Encryption is translation of data into a secret code which can be decrypted back through a use of password. These methods are very useful when transmitting data from one system to another.

6. Why secure data ? To prevent unwanted tampering and loss of data.
To avoid plagiarism.
To protect copyright material.
To prevent hacking.
To avoid damage of software.

7. Why employ physical security ?
Your data may be secured by sophisticated firewalls and various authentication techniques but a lack of physical security can cause

8. Bibliography
All information displayed is purely based on my personal knowledge.

9. Thank You