Tag fake currency notes

Tagging fake currency notes is a crucial step in preventing counterfeiting and maintaining the integrity of a country's currency. Here are some common methods used to tag fake currency notes:

  1. Security Thread: A thin strip of paper or plastic embedded in the note that glows pink or green when held under UV light. This thread is difficult to replicate and is a common feature of most currencies.
  2. Watermark: A transparent image or pattern embedded in the paper that is visible when held up to light. Watermarks are often used in combination with other security features.
  3. Hologram: A hologram image or pattern that appears to shift or change when viewed from different angles. Holograms are difficult to replicate and are often used in high-security notes.
  4. Microprinting: Tiny text or patterns that are difficult to read with the naked eye. Microprinting is often used in combination with other security features.
  5. Color-Shifting Ink: Ink that changes color when viewed from different angles. This feature is often used in combination with other security features.
  6. Raised Printing: Raised images or patterns that can be felt when running a finger over the note. This feature is often used in combination with other security features.
  7. Security Foil: A thin layer of foil or metal that is embedded in the note. This feature is often used in combination with other security features.
  8. Unique Serial Number: Each note has a unique serial number that is difficult to replicate. This feature is often used in combination with other security features.
  9. 3D Security Ribbon: A ribbon that features a 3D image or pattern that appears to move when the note is tilted. This feature is often used in high-security notes.
  10. Digital Watermark: A digital image or pattern that is embedded in the note and can be detected using a special device.

These are just a few examples of the many methods used to tag fake currency notes. The specific features used can vary depending on the country and the denomination of the note.