Earlier quoted context omitted.
Well, I'm sure you understand that there is a broader theme here, given how central it has been to public discourse and lawmaking in the last several years. But should that not be the case, here's data collected via cell-phone that was mishandled - https://eu.azcentral.com/story/news/local/southwest-valley/2... .
But those VHF pagers transmitted all the rest of your data in the clear unprotected, it just didn't have your location or any knowledge if you received the message.
These days pager tech has advanced to support public-private key encryption for messages. So the messages being in plain text is less of a concern.