How it works
Pieces of who you are are things like your full name, birthday, address and phone number. Numbers are pieces too, like an ID number or a number on a card.
On its own, a piece is small, like one blue puzzle piece. Many pieces together can show a whole picture of you.
Identity theft is when someone uses pieces of you to pretend to be you. That is why pieces are worth keeping safe.
Rule one: share the fewest pieces and ask, "Why do they need this?" The less a place has, the less anyone can join up.