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How to protect the software you develop?

Current status, software protection, free download of self-written backdoor video

Link:/s/1dyWuTAbVS1hCYoiCGRmXgQ Extraction code: z0g5

In the development stage of the software, the program Developers often create backdoors into software so they can modify flaws in the program. If a backdoor becomes known to others, or if the backdoor is not removed before releasing the software, it becomes a security risk. The back door is also called Back Door - there are 0 to 65535***65536 ports on a computer. If the computer is regarded as a room, then these 65536 ports can be regarded as the computer's purpose to communicate with the outside world. 65536 doors opened by connections. Why do we need so many doors? Because the owner's affairs are very busy, in order to handle many tasks at the same time, he decided that each door can only be used for one task. Therefore, some doors are specially opened by the host to welcome guests (to provide services), and some doors are opened by the host to visit guests (to access remote services) - in theory, the remaining other doors should be closed. But due to various reasons, some doors are quietly opened without the owner knowing. As a result, bad actors entered, the owner's privacy was spied on, his life was disturbed, and even the things in the house were messed up. This door was quietly opened - the "back door".