Mouse Cursor Tracking in Pure CSS - Disabling JavaScript Won't Help You Anymore

The article discusses a new method for tracking mouse movements solely using CSS, discovered by a researcher. Until now, most tracking techniques relied on JavaScript, which presented certain limitations and challenges. This method leverages CSS properties like :hover and :active to log user interactions with elements on a page. The researcher emphasizes that this new technique can be implemented on websites without the need to load complex scripts, potentially leading to faster performance. However, this method raises serious questions regarding user privacy, as it can be utilized to gather behavior data without the browser user's knowledge. As a result, security experts are urging caution and appropriate safeguards for internet users.