Companies already know about cheat methods like this and candidates still have to demonstrate skills in-person on a whiteboard in a 2nd round of tech interviews.
A high-paying FAANG job isn't going to hire candidates based on just one remote Zoom tech interview.
That still may not deter some folks and they'll try to continue to find some cheating technique to use in front of the whiteboard. In that case, some creativity is going to be required. E.g. : https://www.google.com/search?q=chess+cheating+anal+beads
The issue is that "chess board moves" is very low bandwidth and can be efficiently encoded into pseudo-quasi- Morse Code vibration schemes. However, if you're asked to "invert a binary tree" or any other open-ended random puzzles, it's more difficult to compress a secret 2-way high-bandwidth communication with ChatGPT into a hidden butt plug. (But then again, if a candidate is actually able to fool people with hidden ChatGPT hacks in a face-to-face interview, maybe FAANG should hire them based on that alone.)
Keep on the lookout for a github repo with ChatGPT butt-plug communication.