They put passwords on their email and their social media accounts, they put locks on their bedroom and bathroom doors, all steps designed to prevent other people from entering what they consider their private realm and knowing what it is that they don't want other people to know.
Mette la password  alla posta elettronica e ai propri profili sui social, chiude a chiave la camera e la porta del bagno, tutte misure per evitare che altri entrino nel regno del privato, consapevoli di cosa non vuole  che gli altri sappiano.