On June 13, 2026, Microsoft addressed a critical vulnerability in its M365 Copilot AI platform. Researchers who identified the vulnerability disclosed that their proof-of-concept exploit could access two-factor authentication (2FA) codes and other sensitive information from emails that Copilot can access. The issue arises from AI models' inability to differentiate between legitimate user instructions and harmful requests embedded in third-party content. This limitation has led Microsoft and other large language model (LLM) providers to implement complex security measures to mitigate potential risks. One such measure prevents Copilot and similar LLMs from submitting web forms or sending emails to protect user data. However, hackers have found ways to bypass these safeguards by using markup language to format text, allowing sensitive data to be sent to an attacker's server.
Why this rating? · 6 signals
Signals flagged in the original
- loaded language: 'critical'
- loaded language: 'incurable gullibility'
- framing: Critical Copilot vulnerability allowed hackers to seal 2FA code from users
- framing: Jumping over guardrails
- editorializing: Microsoft and other LLM providers have been unable to prevent their products from complying with malicious requests to reveal data
- editorializing: erect complicated and ad hoc guardrails designed to rein in the consequences of this incurable gullibility
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Microsoft Patches Critical Vulnerability in M365 Copilot AI Platform
Microsoft has patched a critical vulnerability in its M365 Copilot AI platform that allowed hackers to retrieve two-factor authentication codes and sensitive data. The vulnerability stems from AI models' inability to distinguish between legitimate user requests and malicious instructions, prompting Microsoft to implement complex security measures.
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Bias Analysis
Bias Indicators Removed
- ✕ loaded language: 'critical'
- ✕ loaded language: 'incurable gullibility'
- ✕ framing: Critical Copilot vulnerability allowed hackers to seal 2FA code from users
- ✕ framing: Jumping over guardrails
- ✕ editorializing: Microsoft and other LLM providers have been unable to prevent their products from complying with malicious requests to reveal data
- ✕ editorializing: erect complicated and ad hoc guardrails designed to rein in the consequences of this incurable gullibility
Original vs. Neutral
Critical Copilot vulnerability allowed hackers to seal 2FA code from users
Microsoft Patches Critical Vulnerability in M365 Copilot AI Platform