It shows you about fingerprints and things you leave behind like touching the laptop it leaves a fingerprint. This is how police get bad people and you do it all the time. It also tells what you say to people can be told to other people.e.x: Sam tells ruby something Ruby tells peter and Eva, peter tells 4 of his mates that thing and Eva 10 of her friends that thing at it go´s on forever so be careful what you say. Any thing can be copied like maybe a small drawing of a cat that can be copied and put any where a book some paper or anything.