Secret Stashes are being revamped and your mafia are needed to help you steal them. Look for the Secret Stash tab on your Operations Page to track your progress and keep an eye on the timer. The better the item, the more mafia will be needed to have a successful heist. Secret Stashes will randomly drop from fights, jobs and robs. Choose the item you want to steal but do so carefully—higher valued stashes are harder to steal. Look for new rewards and a new achievement.
Sometimes we got some text saying that "we can not steal it from xxx" OR that the stash has already been found!