LESSON 1 · 5 MIN
Strong passwords and passphrases
A good password is long, unique and kept secret.
Long passwords are much harder to guess. A passphrase of three or four random words, like "purple-kettle-river-moon", is long and easy to remember.
Use a different password for each important account, so one leak doesn't unlock everything.
Only share passwords with a parent or carer — never with friends or strangers.
Key idea
Long + unique + secret = strong.
Try it
Invent (but don't use!) a four-word passphrase to practise the idea.