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https://www.productionai.institute/graph/events/evt-aiid-1497

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Production AI Institute public record · AI Incident Database: Hidden Prompt Injection in Brazilian Labor-Court Petition Reportedly Tried to Manipulate Galileu · observed 2026-05-22
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AI Incident Database: Hidden Prompt Injection in Brazilian Labor-Court Petition Reportedly Tried to Manipulate Galileu

Galileu, an AI tool used by Brazil's labor courts, reportedly detected hidden instructions embedded in an initial petition before the 3rd Labor Court of Parauapebas. The text allegedly told the AI to contest the petition superficially and not challenge documents. Galileu reportedly alerted the judge and blocked the hidden content from processing; the judge then reviewed the material before imposing any procedural consequences.

AI Incident Database · Incident 1497

Operator lens (medium): inspect D1 (input boundary), D2 (output validation), D7 (tool permissions).

Confidence
78%
Sources
2
Entities
9
Detected
detected 56d ago

Event summary

Galileu, an AI tool used by Brazil's labor courts, reportedly detected hidden instructions embedded in an initial petition before the 3rd Labor Court of Parauapebas. The text allegedly told the AI to contest the petition superficially and not challenge documents. Galileu reportedly alerted the judge and blocked the hidden content from processing; the judge then reviewed the material before imposing any procedural consequences.

D1D2D7

Linked entities

  • tribunal-regional-do-trabalho-da-4a-regiao

    organisation | 70%

  • conselho-superior-da-justica-do-trabalho

    organisation | 70%

  • tribunal-regional-do-trabalho-da-8a-regiao

    organisation | 70%

  • 3a-vara-do-trabalho-de-parauapebas

    organisation | 70%

  • judicial-system-of-brazil

    organisation | 70%

  • brazilian-labor-courts

    organisation | 70%

  • epistemic-integrity

    organisation | 70%

  • judicial-integrity

    organisation | 70%

  • defendants-in-brazilian-labor-cases

    organisation | 70%

Related graph edges

EdgeTypeConfidence
ent-aiid-tribunal-regional-do-trabalho-da-4a-regiao to ent-psf-d1maps to60%
ent-aiid-tribunal-regional-do-trabalho-da-4a-regiao to ent-psf-d1maps to60%
ent-aiid-tribunal-regional-do-trabalho-da-4a-regiao to ent-psf-d1maps to60%
ent-aiid-tribunal-regional-do-trabalho-da-4a-regiao to ent-psf-d2maps to60%
ent-aiid-tribunal-regional-do-trabalho-da-4a-regiao to ent-psf-d2maps to60%
ent-aiid-tribunal-regional-do-trabalho-da-4a-regiao to ent-psf-d2maps to60%
ent-aiid-tribunal-regional-do-trabalho-da-4a-regiao to ent-psf-d7maps to60%
ent-aiid-tribunal-regional-do-trabalho-da-4a-regiao to ent-psf-d7maps to60%
ent-aiid-tribunal-regional-do-trabalho-da-4a-regiao to ent-psf-d7maps to60%

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Event dates

  • Happened 13 May 2026

  • Detected 22 May 2026

Sources

  • AI Incident Database - Incident 1497

    secondary | checked 9 July 2026

    Open source
  • Galileu: Sistema identifica tentativa de manipulação em petição e alerta magistrado

    secondary | checked 22 May 2026

    Open source
Cite this record

"AI Incident Database: Hidden Prompt Injection in Brazilian Labor-Court Petition Reportedly Tried to Manipulate Galileu." https://www.productionai.institute/graph/events/evt-aiid-1497 (observed 2026-05-13; retrieved 2026-07-17). PAI.

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