Lakera has introduced a Chrome extension called Privacy Guard, designed to protect users' private data during interactions with ChatGPT by using pattern recognition to detect potential data leaks. The extension operates locally on the user's machine, ensuring no data is stored or leaves the device, and offers notifications when sensitive information such as credit card numbers, email addresses, or social security numbers is detected. Users can choose to edit their prompts or proceed with submission, and can toggle specific detectors on or off based on their needs. While currently available for individual users on the Chrome Web Store, Lakera plans to expand the extension's compatibility to other Large Language Models and browsers, as well as offer enterprise solutions. The tool aims to enhance security without impeding the user experience, acknowledging the ongoing security challenges posed by advancements in Large Language Models.