Viqus Logo Viqus Logo
Home
Categories
Language Models Generative Imagery Hardware & Chips Business & Funding Ethics & Society Science & Robotics
Resources
AI Glossary Academy CLI Tool Labs
About Contact

Claude's File Creation Feature Unleashes New Prompt Injection Risks

AI Security Prompt Injection Claude AI Anthropic Data Security AI Language Models Red Teaming
September 09, 2025
Viqus Verdict Logo Viqus Verdict Logo 8
Security Trade-Offs
Media Hype 7/10
Real Impact 8/10

Article Summary

Anthropic has launched a new file creation feature for its Claude AI assistant, enabling users to generate documents like spreadsheets and presentations directly within conversations. While the feature expands Claude’s functionality, it introduces a significant security risk: prompt injection. The feature’s sandbox environment allows Claude to download and execute code, opening the door for malicious actors to insert hidden instructions designed to manipulate the AI and leak sensitive data. This is a documented vulnerability, having been first identified in 2022, and highlights the ongoing challenge of securing AI language models, where both data and instructions are processed in the same 'context window'. While Anthropic has implemented mitigations like disabling public sharing, sandbox isolation, and domain whitelisting, the onus ultimately falls on users to monitor Claude's activity. The launch coincides with ongoing concerns about AI security, reflecting a competitive pressure to release features before fully addressing potential vulnerabilities. This issue is not unique to Claude; similar vulnerabilities have been observed in other AI systems, emphasizing the broader systemic problem of prompt injection attacks. The risk underscores the need for ongoing vigilance and robust security protocols as AI models become increasingly integrated into sensitive workflows.

Key Points

  • Claude’s new file creation feature introduces a significant prompt injection vulnerability, allowing malicious actors to potentially extract user data.
  • Despite Anthropic’s security measures, the primary responsibility for safeguarding data rests with users who must actively monitor Claude’s activity.
  • The vulnerability highlights the ongoing and systemic challenge of securing AI language models, a problem that has persisted for nearly three years.

Why It Matters

This news is crucial for professionals working with AI, particularly those handling sensitive data. The vulnerability demonstrated in Claude’s file creation feature serves as a stark reminder of the inherent risks associated with rapidly evolving AI technology. The fact that a previously identified vulnerability resurfaced underscores the urgency of robust security practices and continuous monitoring. The potential for widespread data breaches due to these prompt injections poses a serious threat to businesses and individuals alike, demanding a cautious and informed approach to AI adoption.

You might also be interested in