I never said that the company/organization can't stand up again (after restore, i.e. after several hours of frantic works by the IT guys), only that it can be b

I never said that the company/organization can't stand up again (after restore, i.e. after several hours of frantic works by the IT guys), only that it can be brought on its knees. And as well, the same people who lose the paper ticket (or have it stolen) may well have lost their smartphone (or I would say with some more probabilities, have it stolen). But I appreciate the single point of failure note.