Some writers have suggested a mass Alien “invasion” of sorts (we should know that aliens aren’t anything more than demons).
Imagine what that would cause.
See Matthew 24:24
I’ve heard that and it sounds very feasible.
Here, take this mark on your forehead or hand to prove your fidelity to the human race, and to prove that you are not a traitor, in league with the aliens.
Or a zombie, taken over by some alien force.