Is Telegram bot secure for home automation message

I use the new telegram action now and while testing and reading i ask myself if this is a good solution. Because the bot is accessible by everyone from outside, or not? Everyone who knows the name can read the messages i send via openhab or not?

Anybody else with that in mind or do i miss some privacy stuff i could not find? The only privacy stuff in api i found was about sending messages to the bot. But i would like to send messages only to a specific user, me.

The bot are public but nobody can read your message becouse you send it to specific chatId. If I connect to your bot my chatId is different so I can’t read your message.
At the moment the bot is used only for notification.

good to know, thanks