Valentin Boanta is a Romanian computer specialist who is currently serving a five-year jail term after he was found guilty of supplying a gang of Romanian robbers with gadgets with which they used to scan magnetic strip of bank cards and used them to withdraw cash via ATM. But, he tuned a new leaf after he was cut. To my surprise, he said he became happy after he was caught.
While still serving his six year jail term, he thought of a way to help protect world's ATMs. He built his SRS, Secure Revolving System, which can help to protect cardholders against Skimmers.
Here's how the device works: