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https://www.productionai.institute/graph/entities/incident-org-fujitsu-post-office-ltd

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Production AI Institute public record · Fujitsu / Post Office Ltd · observed 1999-01-01
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Fujitsu / Post Office Ltd

Fujitsu / Post Office Ltd — organisation named in the Production AI Institute incident registry.

Confidence
72%
Sources
2
Events
1
Observed
observed 10112d ago
Fujitsu / Post Office Ltd

What changed

The UK Post Office prosecuted over 700 subpostmasters for theft and fraud based on accounting discrepancies produced by the Horizon IT system — a system known internally to have software bugs. Subpostmasters were imprisoned and bankrupted. The Post Office suppressed evidence of Horizon's defects fo…

  • UK Post Office Horizon — AI as Infallible Evidence — PAI incident recordhttps://www.productionai.institute/incidents/uk-post-office-horizon
  • UK Post Office Horizon IT Inquiry — official inquiryhttps://www.postofficehorizoninquiry.org.uk/

Timeline

  1. 1 Jan 1999UK Post Office Horizon — AI as Infallible Evidence
    Incident80%
    • UK Post Office Horizon — AI as Infallible Evidence — PAI incident recordhttps://www.productionai.institute/incidents/uk-post-office-horizon
    • UK Post Office Horizon IT Inquiry — official inquiryhttps://www.postofficehorizoninquiry.org.uk/

PSF mapping

D6D8

This entity's public record implicates D6-AUTONOMY-OVERSIGHT-MATRIX, D8-PROVIDER-FALLBACK-PLAN: inspect linked events and sources before changing production controls.

Source trail (2)

primary · checked 3 July 2026

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pai assessment · checked 3 July 2026

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Related records

Connected entities

standardPSF D6 — Human OversightstandardPSF D8 — Vendor Resilience

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"Fujitsu / Post Office Ltd." https://www.productionai.institute/graph/entities/incident-org-fujitsu-post-office-ltd (observed 1999-01-01; retrieved 2026-09-08). PAI.

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