Passive drops refer to a method of collecting data or information without actively engaging with the source. This technique often involves observing or recording events as they happen naturally, without interference. For example, researchers might use passive drops to gather data on wildlife behavior by setting up cameras in their natural habitats. In the context of technology, passive drops can also relate to data collection from user interactions on websites or apps. By tracking user behavior through analytics tools, companies can gain insights into how people use their products, allowing for improvements without directly asking users for feedback.