What EXACTLY is the Mark of the Beast? Explained by the BIBLE! Part 2

What does the BIBLE say the Mark of the Beast is? Alot of people believe the mark could be a chip the vaccine, or having something to do with AI but what if these are distractions? I myself used to believe in these theories until I was informed on what exactly the Bible says.

2 Peter 1:20-21
Knowing this first, that no prophecy of the scripture is of any private interpretation.
For the prophecy came not in old time by the will of man: but holy men of God spake as they were moved by the Holy Ghost.

https://youtu.be/tJ8ZfhULZDg
https://youtu.be/IY0kJFMcTAo