CYBER SECURITY

Very first Question about Cyber security is, What is Cyber Security and Second one is Why do we need it???????

Cyber security is a step which has been taken to protect computer, network, program, data from unauthorized, unintended access, cyber threats take aim at secret, political, military, or infrastructural assets of a nation, or its people. Cyber security is therefore a critical part of any governments’ security strategy. The U.S. federal government for example, has allotted over $13 billion annually to cyber security since late 2010.

                                          

There are millions of reasons that why do we need cyber security.
In present scenario as internet is key of communication and education but has been misused for personal gain or sometime for fun as well, which resulted in cyber attack and unrivaled rise in cyber crime rate.
These rates are expected to increase, more rapidly in the coming years if cyber security is not put in place.

Basically attacks are classified into 2 types:--

1. Active attack 
2. Passive attack

• In active attack third party not only reads data as well as modifies data
• In passive attack third party only reads no modification of data.

Some goals of security:--

1. To protect from cyber theft.
2. Protection from Viruses, Spyware, Phishing, Trojan, Integrity.
3. Confidentiality of sensitive information.
4. Provide access control.
5. Non-repudiation.
6. Ensure availability of system.
7. Proper services to the legitimate user.
8. Enable more trusted transaction online.
9. Building of comprehensive cyber security plan.
10. Authenticate legitimate entities.