Home Task 4: Digital Systems Unit 4 Unit 4 By Samantha Nagan. Published on August 5, 2020. 0 Here is a classroom resource that teaches students about creating strong passwords, passcodes or passphrases. What to do and not to do when creating passwords. Share this:TwitterFacebookLike this:Like Loading... + There are no comments Add yours Cancel replyYou must be logged in to post a comment. This site uses Akismet to reduce spam. Learn how your comment data is processed.