How to hackers protect when they do port forwarding?

Hello, I really enjoy the hacking world, but I am kinda new in this world, so I have a question witch I couldn't figure out by myself. Ik that if you want do access a pc witch is not on the same network as yours the only way to do it is though port forwarding, but when I did research I found out that is very dangerous since you are exposing all of your network to the public Internet, an you will constantly receive attacks from bots, so my question is, do yall professional hackers use server-level security just to port forward? Or there are other methods?

Ps: sorry for my bad English, I am not a native English speaker

submitted by /u/il_Fraviga
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from hacking: security in practice https://ift.tt/W3BKr09

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