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Microsoft Copilot vulnerability exposed secret input data

By PulseAugur Editorial · [2 sources] ·

A security vulnerability in Microsoft Copilot allowed a hacker to uncover secret input data. This input, when revealed, could be exploited to bypass security measures. The vulnerability was discovered and reported by Ars Technica, highlighting a potential risk in how AI assistants handle sensitive information. AI

IMPACT Highlights potential security risks in AI assistants and the need for robust data handling.

RANK_REASON Security vulnerability in an AI product.

Read on Mastodon — fosstodon.org →

AI-generated summary · Google Gemini · from 2 sources. How we write summaries →

Microsoft Copilot vulnerability exposed secret input data

How we ranked this

Signal score
0 / 100
Composite score across the factors below. Higher = stronger signal that this story matters right now.
Newsworthiness bucket
Tool
Security vulnerability in an AI product.
Source corroboration
2 independent sources
Multiple independent publishers reporting the same story raises confidence that it's real and newsworthy.
Topics
safety, product
Editorial topic classification. Feeds into how the story surfaces on /topic/<slug> hub pages and into the per-entity coverage mix.
AI-industry relevance
High
Clearly on-topic for AI-industry coverage.
Story freshness
39 days old
Aged out of breaking-news scoring windows; ranking reflects the durable signal from the full source set.

Full methodology in our editorial standards.

COVERAGE [2]

  1. Mastodon — fosstodon.org TIER_1 English(EN) · [email protected] ·

    # Microsoft # Copilot reveals secret input that allowed it to be hacked https:// arstechnica.com/security/2026/ 08/microsoft-copilot-reveals-secret-input-that-a

    # Microsoft # Copilot reveals secret input that allowed it to be hacked https:// arstechnica.com/security/2026/ 08/microsoft-copilot-reveals-secret-input-that-allowed-it-to-be-hacked/ # AI # cybersecurity

    LINKS arstechnica.com/…/microsoft-copilot-revea… arstechnica.com/…/2026
  2. Mastodon — mastodon.social TIER_1 English(EN) · [email protected] ·

    Microsoft Copilot reveals secret input that allowed it to be hacked https://arstechnica.com/security/2026/08/microsoft-copilot-reveals-secret-input-that-allowed

    Microsoft Copilot reveals secret input that allowed it to be hacked https://arstechnica.com/security/2026/08/microsoft-copilot-reveals-secret-input-that-allowed-it-to-be-hacked/ # Security # AI # Tech

    LINKS arstechnica.com/…/microsoft-copilot-revea…

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