Covert surveillance devices disguised as ordinary USB data storage units offer a discreet method for capturing video and audio. These devices typically resemble standard flash drives and can often perform legitimate data storage functions in addition to their surreptitious recording capabilities. An example would be a device appearing and functioning as a typical USB drive while simultaneously recording video through a pinhole lens.
The inconspicuous nature of such devices makes them valuable tools for various applications, including personal security, investigative journalism, and evidence gathering. Historically, covert recording devices were bulky and difficult to conceal. The miniaturization of electronics and advancements in camera technology have enabled the creation of these highly portable and discreet surveillance tools. This has broadened their accessibility and increased their potential applications across various fields.