A lockout box for locking in objects, in particular keys, comprises a container having an upwardly open reception space for the objects and comprises a cover attached, in particular pivotably, to the container for closing the reception space, wherein the cover is adjustable from a closed position in which the reception space is closed into at least one open position in which the reception space is open, with a plurality of securing openings being provided in the cover and in the container for attaching a plurality of locking elements, in particular padlocks, and with at least one fastening device being provided at the container and being designed to attach the container to a wall.