Thank you for contacting us, and I'm sorry for the issue you are experiencing after the most recent iOS update. I see posted a response in another thread, but I'm going to delete that one to continue our correspondence here. In mSecure 4, were you using Touch or Face ID to unlock the app? Is that why you can't remember your password?
You hit the nail on the head Ray! Have you downloaded the TestFlight app, and do you want to install the utility app to retrieve your password? If so, go ahead and give your Apple ID, and we'll proceed. Like I mentioned with Lorenzo, if you don't want to write that out in a forum response, we'll have to this via email instead.