I have been using Quicken ever since its first version. I always used a password to protect my files. Then a few years ago the developers required you to log in with your Quicken account login, when you first open Quicken and periodically thereafter. It stopped asking me to enter a file password when I opened my file so I assumed (apparently incorrectly) that the login was required to open my files and a file level password is no longer required.
I sent a test file to a friend who is also a heavy Quicken user and much to my surprise he was able to open it without my login or any kind of password. What is going on here? Are all Quicken files now open for anyone with their own login to read them? How do I protect my files in case they are stolen?