The provided source offers an in-depth analysis of miniaturized surveillance technology, focusing on its state in July 2025. It categorizes "spying devices" into visual, audio, and location-tracking functionalities, distinguishing between commercially available (COTS) products and cutting-edge research and development (R&D) prototypes. The report illuminates the technological foundations driving miniaturization, such as Micro-Electro-Mechanical Systems (MEMS), advanced power solutions, and low-power communication networks. Finally, it explores the future trajectory toward "Smart Dust" and "Neural Dust", highlighting their potential and the significant challenges to their widespread deployment, with profound implications for privacy and security.

Research done with the help of artificial intelligence, and presented by two AI-generated hosts.