> # All color laser printers and copiers leave invisible, tiny yellow dots that form a code to track the printer's serial number, date, and time of printing. These dots, known as the Machine Identification Code (MIC), are invisible to the naked eye but can be revealed by scanning the document, using a blue or UV light, or a microscope. This technology was originally developed to help governments combat counterfeiting but raises privacy concerns.
> # All color laser printers and copiers leave invisible, tiny yellow dots that form a code to track the printer's serial number, date, and time of printing. These dots, known as the Machine Identification Code (MIC), are invisible to the naked eye but can be revealed by scanning the document, using a blue or UV light, or a microscope. This technology was originally developed to help governments combat counterfeiting but raises privacy concerns.