What is a hacker?

A hacker is a person who likes to use his intelligence to challenge the limits of his brain through creative methods, especially in the fields they are interested in, such as computer programming or electrical engineering.

Hackers originated from English hacker, which was praised in American computer field in the early days. But in media reports, the word hacker often refers to those "software cracker".

The word hacker originally refers to computer experts who are enthusiastic about computer technology and have a high level, especially programmers.

But today, the word hacker has been used to refer to those guys who use computers to sabotage or play pranks. The correct English name for these people is Cracker, which is translated as "hacker".

The fundamental difference between hackers and hackers is that hackers build and hackers destroy.

The word hacker generally has the following four meanings:

A person who knows enough programming languages to create useful software without long thinking.

a malicious (usually illegal) person who tries to crack or destroy a program, system and network security. This meaning often causes serious troubles to those hackers who meet condition (1). They suggest that the media call this group of people "hackers". Sometimes these people are also called "black hat hackers".

a system security vulnerability that attempts to crack a system or network to alert the system owner. This group of people are often called "white hat hackers" or "anonymous" or honker. Many of these people are employees of computer security companies and attack a system under completely legal circumstances.

a person who makes (often good) modifications to a program through knowledge or speculation and changes (or enhances) the purpose of the program.

"script kids" refer to those who have no or only a little hacking skills, but just follow the instructions or run some hacking program to achieve the purpose of cracking.

Richard Stallman, a famous hacker, is a traditional hacker. Stallman was hired as a programmer in the artificial intelligence laboratory of Massachusetts Institute of Technology in 1971.

Ken Thompson and Dennis Ritchie-- programmers of computer science operation group in Bell Labs. They invented the Unix operating system in 1969.

John Draper (known as Captain Crunch)-who invented a plastic whistle to make free calls

Mark Abene (known as Phiber Optik)-inspired countless teenagers in the United States to "learn" how the internal telephone system works

Robert Morris, a graduate of Cornell University, accidentally spread the first Internet worm in 1988.

Kevin Mitnick-the first hacker on the fbi's most wanted list.

Kevin Poulsen-Poulsen successfully controlled all telephone lines entering KIIS-FM radio station in Los Angeles in 199 and won the prize-winning listener game sponsored by the radio station.

Vladimir Levin-this mathematician led a Russian hacker organization to defraud Citibank to distribute 1 million dollars to it.

Steve wozniak-one of the founders of Apple Computer.

tsotumu Shimomura-broke the bank account of Steve Wozniak, the most famous hacker at that time, in 1994.

Linus Torvalds-He developed the famous Linux kernel in 1991, when he was a computer student at the University of Helsinki, Finland.

Johan Helsingius-Helsenius developed the world's most popular anonymous reply program called "penet.fi" after closing his small shop in 1996, and his troubles began to follow. The most tragic thing is that the Finnish police searched a penet.fi user in 1995 after he complained about posting secrets of the church on the Internet. Later, he sealed the reply procedure.

Tsutomu Shimomura-I can remember that he caught mitnick.

Eric Raymond-Eric Raymond has been active in the computer field, engaged in various computer system development work. At the same time, Eric Raymond is more keen on the development and promotion of free software, writing articles and giving speeches, actively promoting the development of the free software movement and making great contributions to free software. His articles such as Cathedral and Market are classic works in the field of free software. Under the influence of this article, Netscape decided to open their source code, making the browser an important member of the free software family.