Niqqud are modern though. I believe there were vowels that …

Niqqud are modern though.
I believe there were vowels that existed beforehand and were removed to obfuscate words so messages could not be read when intercepted by enemies.

Whts wp dr bn gw?
Hw 'r yw dwyng tdy?
Hwp 'll ys wll!

↑Shit like that.