Meta has released an update for its Muse macOS app after a security researcher discovered a critical vulnerability that could have allowed attackers to take control of the AI-powered assistant. The flaw, identified by Patrick Wardle, involved an undocumented feature within Muse that could be exploited by malicious actors running local code. This would allow them to redirect audio transcription tasks—normally processed on Meta's servers—to a different server controlled by the attacker, potentially giving them access to the user's Muse account and any sensitive data being processed. The vulnerability stemmed from several design choices in the Muse application. One key issue was that transcription processing occurs in the cloud rather than on the user’s device, which increases the risk of data interception or redirection. Additionally, the app allowed any third-party application to access and modify Muse’s undocumented settings, which were not intended to be exposed to external programs. Wardle’s findings highlight the potential risks of relying on cloud-based AI processing, where data is transmitted over the internet and processed remotely. This incident underscores the importance of securing both the infrastructure handling sensitive data and the APIs that control such services. Meta’s response with a patch indicates the company is actively addressing these concerns, though it also raises questions about the security of similar AI tools that rely on cloud processing. This discovery adds to the growing awareness of vulnerabilities in AI-powered applications, especially those that handle personal or sensitive information. As more companies integrate AI assistants into their products, ensuring the security of these systems becomes increasingly critical to protect user privacy and prevent unauthorized access.