What equipment to use to create a secure wi-fi network?

Question

WiFi

At a distance of 15 meters (and preferably 600) it is required to transfer a video stream from computer to computer (and possibly not only video). Looking for a wireless solution.
Ordinary wi-fi transmitters will not work - there is a big risk of hacking (
I know there are some transmitters that operate at a slightly different frequency than wi-fi (now few people can see the data channel) and have something like additional protection against hacking - only device "B" can connect to device "A" and no substitution of the mac address, etc. will work
Who knows - please tell me which way to google, which devices have these functions?
PS About 5 years ago, somewhere they told me (and showed) about such devices for secure data transmission without wires, and for some reason I remember that this is an apple (I could be wrong, maybe because of the white color and streamlined shape of a particular instance, I had an opinion)

Answer 1

Ordinary wi-fi transmitters will not work - there is a big risk of hacking (

Delusion. WPA2 with AES encryption has not yet been directly hacked. At the moment, the main methods of WPA2 hacking are dictionary attacks and brute force, so just use good passwords.

Answer 2

Just make a tunnel, ssh or VPN on top of the waffle and that's it - very convenient and safe