1. Cybercrime has many forms and harms: stealing other people's account information for their own profit (such as reselling users' personal information), infringing others' copyright, and spreading obscene pornographic information, especially referring to recent reported events such as WeChat group gambling and WeChat group prostitution.

2. The reasons of cyber crime can be listed as follows.

3. How to combat cyber crime:

In view of the problems mentioned in 1, this paper gives some suggestions to combat cyber crime and various forms of cyber crime at present.

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