Actually the reality is that everybody thinks Hacking is illegal. And its main purpose is to hack others System and Networks. But its not like that. The main purpose of hacking is to secure our system from malicious cyber attacks and finding vulnerability in system so that we can stay safe in this technological world.

Now a days taking this as a career option is increasing rapidly. 

(which is also known as cyber security or information security.)

What is Hacking ?

It is a process in which a person or computer expert usually done to gain unauthorized access to a computer system or a computer network, either to harm the system to steal sensitive information available on the computer.

Those person who perform this act is known as Hacker.

Cracker:-A cracker is someone who breaks into someone else's computer system, often on a network, bypasses password or licenses in computer programs or in other ways intentionally breaches computer security.

Note:-"A cracker is a good hacker but a hacker is not a good cracker."

Ethical Hacking

Hacking is usually legal as long as it is being done to find weakness in a computer or network system for testing purpose and hence it is called as Ethical Hacking.

Types Of Hacker

There are so many types of hacker based on their intent of  hacking a system. But generally we consider 3 types of hacker.

1.Black Hat Hacker:-

It is also known as cracker as we discuss earlier are those who hack in order to gain unauthorized access to a system and harm its operation or steal sensitive information.

"Black Hat hacking is always illegal because of its bad intent which includes stealing corporate data, blocking network system, violating privacy etc."

2.White Hat Hacker:-

White hat hackers are also known as Ethical Hackers. They never intent to harm a system, rather they try to find out weakness in a computer or a network system as apart of penetration testing and vulnerability assessment.

3.Grey Hat Hacker:-

Grey hat hackers are a blend of both black hat and white hat hackers. they act without malicious intent but for their fun. They exploit a security weakness in a computer system or network without the owner's permission or knowledge.

Types of Hacking

We can segregate hacking into different categories, based on what is being hacked.

1.Website Hacking:-

Hacking a website means unauthorized control over a web server and its database.

2.Network Hacking:-

Hacking a Networks means gathering information about a network by using tools like Telnet, nslookup, wireshark, etc. with the intent to harm the network system and hamper its operation.

3.E-mail Hacking

It Includes getting unauthorized access on an email account and using it without taking the consent of its owner.

4.Password Hacking:-

This is the process of recovering secret password from data that has been stored in or transmitted by a computer system.

5.Computer Hacking:-

This is the process of stealing computer ID and Password by applying hacking methods and getting unauthorized access to a computer system.

Advantages of Hacking

Hacking is quite useful in the many ways that are as follows
  • To recover lost information, especially in case you lost your password.
  • To perform penetration testing to strengthen computer and network security.
  • To put adequate preventative measures in place to prevent security breaches.
  • To have a computer system that prevents malicious hackers from gaining access.

Disadvantages of Hacking

Hacking is quite dangerous if it is done with harmful intent it can cause:-
  • Massive Security breach.
  • Privacy violation.
  • Malicious attack on the system.
  • Hampering system operation.
  • unauthorized system access on private information.

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