There has been a reported steep increase in counterfeit Euros in circulation including lower denomination notes
How do you spot a fake euro?
Each of the euro banknote denominations have a different colour and image, but they do share common security features to help you tell a fake note from a real one.
1. Look and feel
A real Euro banknote is made of cotton and feels crisp and firm.
Run your finger across the front of a banknote and you will feel raised print in some parts,
where the ink is thicker.
The new €5 and the new €10 also have short raised lines on the left and right edges
A fake note will feel limp and waxy. The raised print is usually missing, so the ink does.
2. Check for security features
The watermark is produced by varying the thickness of the paper.
It can be seen by holding the banknote against the light. The transitions between the light and
dark parts of the image are smooth.
If you put the banknote on a dark surface, the watermark becomes darker. This effect is very easy to
see in the number
A fake watermark is usually printed on the paper. It appears darker than the surrounding area. The transitions between light and dark areas are often very sharp.
3. Tilt the bank note
When checking €5, €10 and €20 banknotes, the hologram will change between the value of the banknote and a € symbol.
In the €50, €100, €200 and €500 banknotes, the hologram will change between the value of the banknote and a window or doorway.
In the background, you can see rainbow-coloured concentric circles of tiny letters moving outwards. On the new €5 and €10 a portrait of Europa, the main image and the value of the banknote become visible.
For more information, visit new-euro-banknotes.eu.
If you understand Greek more details can be found here