A hacker sends not normal and illegal signals from satellites.

People over the whole world blink with their eyes more then normal. You can study this on TV (Bloomberg, BBC, CNN or other TV-channels). It is very easy to see.

Maybe it is less visible, but men have less soft movements then normal.
This is also because of illegal and dangerous signals from satellites into the brains of human beings.

It is very easy to see the increased eye blinking on people on television.

Also the less soft movements on people (especially men) are very easy to observe and register.
If you want to, or have to, you can compare

old record/tapes of television or films
vs.
todays television and new films.