Follow the author on Twitter and subscribe on Youtube (The Non-fungible Guy). The double-spending issue in cryptocurrency is a typical issue in all economic systems. Wrongdoers aim to exploit or mimic existing currencies for personal financial benefit, whether with fraudulent gold, counterfeit dollar bills, fake coins, or duplicating cryptocurrency. Wrongdoers are frequently some of the first to adopt new technologies and currencies because an asset is often untested or unregulated, making it...