1, which belongs to the web direction, is a branch of the web direction, that is, the work of detecting attackers.

2, there are many kinds of infiltration, intranet and extranet, but generally refers to network intrusion.

3. Cracking software is a combination of cryptography and reverse engineering, which requires rich experience and pregnancy.

4. That's right. The web direction requires that the technical ability should not be too high. Cracking is divided into cryptography and reverse engineering. These two directions are more difficult, and both need profound mathematical skills and logical ability. Finding a job has little to do with these. College is still about personal interests.

5. Don't be greedy, otherwise you can't do well in that direction. In fact, the latter technology is the same, and it is easier to convert again, provided that you are proficient in one direction.

6. It mainly depends on which direction you are interested in. It is not easy to do it well. Let's just say that there is a big market in the web direction and the competition is relatively fierce. The other two directions are not big, but the requirements are high. The higher the level, the higher the income. To put it bluntly, the web direction can be learned quickly, but it takes more time and knowledge to become a talent. The other two directions are not so easy to learn, but what is needed is to drill down more, and only when you are skilled can you become useful.