Hacker cover tool, How do hackers disguise themselves as a phone on network?

How do hackers disguise themselves as a phone on network?
how hacker disguise his Kali as another device on the network?
realy are a a samsung phone or a Kali hacker on PC?
What about MAC changer?
-----------------------recommend:
https://youtu.be/J_xuVhFdnYg?feature=shared
https://youtu.be/Z6GabGTbnxg?feature=shared
-----------------------commands:
sudo apt install macchanger
ifconfigue
cat /usr/share/ieee-data/oui.txt
cat /usr/share/ieee-data/oui.txt | grep -i samsung
sudo macchanger -m ....... eth0
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Видео Hacker cover tool, How do hackers disguise themselves as a phone on network? канала Kali linux Studio