All of our customers' information was kept in/on a 'database'.
an online 'database'
(..) - Where is it? - The clean slate? Where you type in someone's name, date of birth, in a few minutes they're gone from every database on earth? - Sound a little too good to be true? - You're lying! - Rykin Data took it to prototype stage. - That's why I bought 'em. But they had nothing. (..)2012 The Dark Knight Rises