This threat involves malicious browser extensions for Google Chrome and Microsoft Edge that are disguised as productivity tools to enhance ChatGPT usage. These extensions, once installed by users, can intercept and steal active ChatGPT session data, potentially exposing sensitive conversational information. The extensions exploit the trust users place in browser add-ons and the permissions granted to them, allowing threat actors to access session tokens or data transmitted between the user and ChatGPT services. While no specific affected versions of the extensions or browsers are identified, the attack vector relies on social engineering to convince users to install these extensions. The threat does not require sophisticated exploitation techniques but depends on user interaction and permission granting. No known exploits are currently active in the wild, and the overall severity is considered low by the source. However, the exposure of ChatGPT session data can lead to privacy violations, data leakage, and potential further attacks if sensitive information is disclosed. The lack of patches or direct fixes means mitigation focuses on prevention and detection.

For European organizations, the primary impact is the potential leakage of sensitive or confidential information shared during ChatGPT sessions, which may include proprietary data, internal communications, or personal information. This can lead to privacy breaches, reputational damage, and compliance issues under regulations such as GDPR. The threat could also facilitate further attacks if stolen data is used for social engineering or credential theft. Organizations relying heavily on Chrome or Edge browsers and integrating ChatGPT into workflows are at higher risk. Although the threat currently appears limited in scope and ease of exploitation is moderate due to required user action, the widespread use of these browsers and AI tools in Europe increases the potential attack surface. The absence of known active exploits reduces immediate risk but does not eliminate future exploitation possibilities.

European organizations should implement strict browser extension policies, allowing only vetted and approved extensions through enterprise management tools. User education campaigns must emphasize the risks of installing unverified extensions, especially those promising productivity enhancements for AI tools like ChatGPT. Monitoring network traffic for unusual data flows to unknown endpoints can help detect potential data exfiltration. Employing endpoint protection solutions that can analyze extension behavior and block suspicious activities is recommended. Organizations should also encourage the use of official ChatGPT applications or web portals rather than third-party extensions. Regular audits of installed browser extensions and prompt removal of unauthorized add-ons are critical. Finally, maintaining awareness of emerging threats related to AI tool integrations will help preempt similar attacks.