The first step of hacker's basic knowledge is to master the foundation of web front and back and the communication principle of server, including h5, js, PHP and sql. Technically, there are hackers who focus on web penetration testing, binary hackers who focus on mining software and hardware vulnerabilities, hackers who focus on mobile security or wireless security, such as mobile phone hackers, and reverse hackers who like to crack software.

Hacker origin

The word "hacker" originated from the Massachusetts Institute of Technology in the 1950s, when a group of smart and energetic young students at MIT got together, and the sparks of ideas collided with each other, and like-minded people formed interest groups. For example, the most famous Tech Model Railroad Cloub Railway Technology Club, everyone studies the composition of the train, the signal control system, assembles the model by themselves, modifies the model, studies the experiment together, and puts their ideas into practice.

Over time, people call these fun and technical ideas hack. And the elites in these clubs call themselves hackers, which is the origin of the word. These clubs live up to expectations. They are not only fun, but also play with things that change and influence the world today, such as Unix, Internet, open source software and so on.