Hey Stacy, I forgot my password for my log-in to the computer, can I borrow yours?
A bit later during class...
Of course Abby! 
Miss Honey over hears conversation...
Girls, could I have a quick chat with you about sharing passwords? It's very dangerous to share such private information with other people. 
I'm sure Abby would never do anything to hurt, but sharing private information online and in person is very dangerous because you never know who may get a handle of that infromation and do something bad with it.
But Miss Honey, Abby is my friend! She would never do anything to hurt me.
Oh that makes sense, especially online, you never really know who someone is behind the screen.
And even in person, you never really know who is listening and could take the information and use it for themselves.
Thankyou so much Miss Honey!
That's all good girls! I'll help you reset your password Stacy so that you can log in.