You've done pretty well with your explanations of each of the questions, which is highly essential in protecting your hive account and assets in it.
However I was hoping you'll show us a pictorial guide on how to see and change ones Trustee accounts, as that would have come in handy for someone who'll be holding to learn from this.
Also, when it comes to protecting your account assest when your active keys get expose on hive, I was also hoping you'll show us some of the steps as explained during the tutorial, and it's much better you quickly changed your entire keys and as well send your liquid assets to someone you trust, before the person will transfer them, your trustee account has nothing to do in helping you change your keys, since it's not like you're lockout of the account.
Overall you did an excellent job and I hope you'll explore more to learn and get acquainted with how this is done.
I'm sorry about not explaining everything in detail, i will make sure next time not to make same mistakes again.