IANAAccountant, but I have run systems that fed into G/L systems. If the G/L were set up halfway correctly, everyone in the executive suite would have known tha

IANAAccountant, but I have run systems that fed into G/L systems. If the G/L were set up halfway correctly, everyone in the executive suite would have known that Horizon was producing bad data. Most transactions at a post office would either have had effects on inventory (buying stamps or stationery) or on liabilities (if a customer paid to send a package, someone would have to actually deliver that package). "Duplicate" transactions would only escape notice for services provided immediately without reducing inventory, like a haircut. I doubt many people are getting their hair cut at the post office. This whole episode calls to mind the authoritarian reaction to "impossible" hacks of the various chip'n'pin schemes rolled out in UK over the years. The credit cards were assumed to be perfect, so account holders were held responsible when they got hacked. [0] In general, individuals in conflict with giant organizations should have access to appeals outside those organizations. [0] https://www.lightbluetouchpaper.org/2012/09/10/chip-and-skim-cloning-emv-cards-with-the-pre-play-attack/ https://www.lightbluetouchpaper.org/2012/09/10/chip-and-skim...