ParameterFetcher Password

And why later versions of FME will always offer to password-protect a workspace that contains a password. Still, this is good to know!

Yeah, it's a fairly well known issue. Unless you're using web- and database connections, in my opinion there's not really any realistic way of protecting the passwords from someone that can modify or replace the workspace.

Thanks for all your answers. Did implement a Web Connection to secure my credentials 🌻

If I understood well, password protection on workspaces is also limited, as the software is able to decode it, correct?

You may want to look at the answer to "How secure is a password protected workspace?" here: https://community.safe.com/s/article/password-protection-for-fme-workspaces

"I tried a number of ways to view a protected workspace in a text editor, or otherwise access the content, and couldn't."

Yeah, as an official response that's a bit... lacking... Personally I wouldn't consider the workspace password protection as anything more secure than a hindrance to the average viewer.

To be fair, I seem to recall Safe mentioning this a number of times: the password protection won't hold up to serious cracking attempts.