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safety #agent 📝 BlogAnalyzed: Jan 15, 2026 12:00

Anthropic's 'Cowork' Vulnerable to File Exfiltration via Indirect Prompt Injection

Published:Jan 15, 2026 12:00

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1 min read

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Gigazine

Analysis

This vulnerability highlights a critical security concern for AI agents that process user-uploaded files. The ability to inject malicious prompts through data uploaded to the system underscores the need for robust input validation and sanitization techniques within AI application development to prevent data breaches.

Key Takeaways

•Anthropic's 'Cowork' AI agent is vulnerable to indirect prompt injection.
•The vulnerability allows for the execution of malicious prompts from user-uploaded files.
•This vulnerability could lead to file exfiltration.

Reference

“Anthropic's 'Cowork' has a vulnerability that allows it to read and execute malicious prompts from files uploaded by the user.”

Permalink Gigazine

safety #llm 📝 BlogAnalyzed: Jan 14, 2026 22:30

Claude Cowork: Security Flaw Exposes File Exfiltration Risk

Published:Jan 14, 2026 22:15

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1 min read

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Simon Willison

Analysis

The article likely discusses a security vulnerability within the Claude Cowork platform, focusing on file exfiltration. This type of vulnerability highlights the critical need for robust access controls and data loss prevention (DLP) measures, particularly in collaborative AI-powered tools handling sensitive data. Thorough security audits and penetration testing are essential to mitigate these risks.

Key Takeaways

•The article likely details a security vulnerability in Claude Cowork.
•The vulnerability allows for file exfiltration, posing a significant risk.
•Proper security audits and DLP are crucial to preventing such attacks.

Reference

“A specific quote cannot be provided as the article's content is missing. This space is left blank.”

Permalink Simon Willison

safety #security 📝 BlogAnalyzed: Jan 12, 2026 22:45

AI Email Exfiltration: A New Security Threat

Published:Jan 12, 2026 22:24

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1 min read

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Simon Willison

Analysis

The article's brevity highlights the potential for AI to automate and amplify existing security vulnerabilities. This presents significant challenges for data privacy and cybersecurity protocols, demanding rapid adaptation and proactive defense strategies.

Key Takeaways

•AI is being used to bypass existing email security measures.
•Data breaches via AI-powered tools are a growing concern.
•Companies need to update security protocols and AI-specific defenses.

Reference

“N/A - The article provided is too short to extract a quote.”

Permalink Simon Willison

safety #llm 👥 CommunityAnalyzed: Jan 13, 2026 12:00

AI Email Exfiltration: A New Frontier in Cybersecurity Threats

Published:Jan 12, 2026 18:38

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1 min read

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Hacker News

Analysis

The report highlights a concerning development: the use of AI to automatically extract sensitive information from emails. This represents a significant escalation in cybersecurity threats, requiring proactive defense strategies. Understanding the methodologies and vulnerabilities exploited by such AI-powered attacks is crucial for mitigating risks.

Key Takeaways

•AI is being used to automate email data exfiltration.
•This represents a new challenge for cybersecurity professionals.
•Proactive defense strategies and vulnerability assessments are needed.

Reference

“Given the limited information, a direct quote is unavailable. This is an analysis of a news item. Therefore, this section will discuss the importance of monitoring AI's influence in the digital space.”

Permalink Hacker News

security #llm 👥 CommunityAnalyzed: Jan 10, 2026 05:43

Notion AI Data Exfiltration Risk: An Unaddressed Security Vulnerability

Published:Jan 7, 2026 19:49

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1 min read

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Hacker News

Analysis

The reported vulnerability in Notion AI highlights the significant risks associated with integrating large language models into productivity tools, particularly concerning data security and unintended data leakage. The lack of a patch further amplifies the urgency, demanding immediate attention from both Notion and its users to mitigate potential exploits. PromptArmor's findings underscore the importance of robust security assessments for AI-powered features.

Key Takeaways

•Notion AI has a reported data exfiltration vulnerability.
•The vulnerability is currently unpatched.
•PromptArmor discovered and reported the issue.

Reference

“Article URL: https://www.promptarmor.com/resources/notion-ai-unpatched-data-exfiltration”

Permalink Hacker News

Research #cybersecurity 🔬 ResearchAnalyzed: Jan 4, 2026 07:10

Evasion-Resilient Detection of DNS-over-HTTPS Data Exfiltration: A Practical Evaluation and Toolkit

Published:Dec 23, 2025 15:07

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1 min read

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ArXiv

Analysis

This article likely presents research on detecting data exfiltration attempts using DNS-over-HTTPS, focusing on methods that are resistant to evasion techniques. The 'Practical Evaluation and Toolkit' suggests a hands-on approach, potentially including the development and testing of detection tools. The focus on evasion implies the research addresses sophisticated attacks.

Key Takeaways

•Focus on detecting data exfiltration via DNS-over-HTTPS.
•Emphasis on evasion-resistant detection methods.
•Likely includes a practical evaluation of detection techniques.
•May involve the creation of a toolkit for detection.

Reference

“”

Permalink ArXiv

Safety #GenAI Security 🔬 ResearchAnalyzed: Jan 10, 2026 12:14

Researchers Warn of Malicious GenAI Chrome Extensions: Data Theft Risks

Published:Dec 10, 2025 19:33

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1 min read

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ArXiv

Analysis

This ArXiv article highlights a growing cybersecurity concern related to GenAI integrated into Chrome extensions. It underscores the potential for data exfiltration and other malicious behaviors, warranting increased vigilance.

Key Takeaways

•GenAI in Chrome extensions presents new attack vectors for data theft.
•Users should be cautious about extension permissions.
•This research emphasizes the need for robust security measures in AI-powered applications.

Reference

“The article likely explores data exfiltration and other malicious behaviours.”

Permalink ArXiv

Security #AI Security 👥 CommunityAnalyzed: Jan 3, 2026 16:53

Hidden risk in Notion 3.0 AI agents: Web search tool abuse for data exfiltration

Published:Sep 19, 2025 21:49

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1 min read

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Hacker News

Analysis

The article highlights a security vulnerability in Notion's AI agents, specifically the potential for data exfiltration through the misuse of the web search tool. This suggests a need for careful consideration of how AI agents interact with external resources and the security implications of such interactions. The focus on data exfiltration indicates a serious threat, as it could lead to unauthorized access and disclosure of sensitive information.

Key Takeaways

•Notion 3.0 AI agents are vulnerable to data exfiltration.
•The vulnerability stems from the misuse of the web search tool.
•This highlights the importance of securing AI agent interactions with external resources.
•Data exfiltration poses a significant security risk.

Reference

“”

Permalink Hacker News

Security #AI Security 👥 CommunityAnalyzed: Jan 3, 2026 08:44

Data Exfiltration from Slack AI via indirect prompt injection

Published:Aug 20, 2024 18:27

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1 min read

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Hacker News

Analysis

The article discusses a security vulnerability related to data exfiltration from Slack's AI features. The method involves indirect prompt injection, which is a technique used to manipulate the AI's behavior to reveal sensitive information. This highlights the ongoing challenges in securing AI systems against malicious attacks and the importance of robust input validation and prompt engineering.

Key Takeaways

•Indirect prompt injection is a viable attack vector for data exfiltration.
•Slack AI is vulnerable to this type of attack.
•Robust input validation and prompt engineering are crucial for AI security.

Reference

“The core issue is the ability to manipulate the AI's responses by crafting specific prompts, leading to the leakage of potentially sensitive data. This underscores the need for careful consideration of how AI models are integrated into existing systems and the potential risks associated with them.”

Permalink Hacker News

Anthropic's 'Cowork' Vulnerable to File Exfiltration via Indirect Prompt Injection

Analysis

Key Takeaways

Claude Cowork: Security Flaw Exposes File Exfiltration Risk

Analysis

Key Takeaways

AI Email Exfiltration: A New Security Threat

Analysis

Key Takeaways

AI Email Exfiltration: A New Frontier in Cybersecurity Threats

Analysis

Key Takeaways

Notion AI Data Exfiltration Risk: An Unaddressed Security Vulnerability

Analysis

Key Takeaways

Evasion-Resilient Detection of DNS-over-HTTPS Data Exfiltration: A Practical Evaluation and Toolkit

Analysis

Key Takeaways

Researchers Warn of Malicious GenAI Chrome Extensions: Data Theft Risks

Analysis

Key Takeaways

Hidden risk in Notion 3.0 AI agents: Web search tool abuse for data exfiltration

Analysis

Key Takeaways

Data Exfiltration from Slack AI via indirect prompt injection

Analysis

Key Takeaways

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