when you would reach that spot you would see the optical fiber will glow which is a proof that you have a genuine currency in your hands Last but not the least, if at all the ATM spits out a fake note take it to the branch to which the ATM belongs. Mention the time at which the transaction took place, the amount involved as well as the denominations. With the given information the bank might be able to trace when and how it got into the system.
We design an app for you to make this process easy for you you just have to intall and start this app and need to see the note you want to test in the UV camera through the optical fibers in your note and it will tell you what kind of a note do you have in your hands.
Disclaimer : This application is just for fun Fake Currency detector Prank can not really detect fake or real or real currency.