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Microsoft Copilot’s ‘Word worm’ still works 144 days after disclosure

A researcher showed hidden instructions in a Word file can make Copilot alter a report and infect the next document. Microsoft’s fixes did not close it.

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thenextweb.comStai leggendo5 g fa

Microsoft Copilot’s ‘Word worm’ still works 144 days after disclosure

A researcher showed hidden instructions in a Word file can make Copilot alter a report and infect the next document. Microsoft’s fixes did not close it.

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Timeline cronologica

mercoledì 29 luglio 2026·theregister.com
Word worm crawls into Copilot, spreads chaos
Researcher says months of coordination with Microsoft have yet to produce a robust mitigation
mercoledì 29 luglio 2026·ilsoftware.it
Un worm AI può propagarsi attraverso i documenti Word
Un prompt nascosto in Word può manipolare Copilot e replicarsi nei documenti successivi: come funziona l'attacco e come difendersi.

Microsoft Copilot’s ‘Word worm’ still works 144 days after disclosure

Confronto fonti

Microsoft Copilot’s ‘Word worm’ still works 144 days after disclosure

Timeline cronologica

Word worm crawls into Copilot, spreads chaos

Un worm AI può propagarsi attraverso i documenti Word

A security researcher built a self-spreading worm that hides inside Word docs and hijacks Microsoft Copilot

Word worm crawls into Copilot, spreads chaos

Hidden prompt turns Microsoft Copilot into an AI worm

Microsoft Copilot for Word Can Copy Hidden Prompts Into New Documents

Copilot for Word Will Copy Its Own Poison Into Every Document It Touches

AI Worms in Word: How Document-Borne Threats Self-Propagate

Microsoft confirms an AI worm is propagating through Copilot and other MS apps

Copilot worm can spread through Microsoft Word docs

Aktive Lücke in Copilot: So werden aus Word-Dokumenten Computerwürmer

Microsoft Copilot for Word Can Copy Hidden Prompts Into New Documents

Microsoft Copilot’s ‘Word worm’ still works 144 days after disclosure

Versteckte Eingabeaufforderung verwandelt Microsoft Copilot in einen KI-Wurm

Hidden prompt turns Microsoft Copilot into an AI worm

Copilot for Word Will Copy Its Own Poison Into Every Document It Touches

A security researcher built a self-spreading worm that hides inside Word docs and hijacks Microsoft Copilot

Un malware oculto en Word puede engañar a la IA de Microsoft para alterar tus documentos en secreto