Double-spending represents a particular risk for digital currencies. It is the fraudulent spending of the same digital currency or token multiple times. Digital currencies are susceptible to this type of theft due to the vulnerability of digital information and delays when processing transactions. There are a variety of techniques that malicious individuals utilize, including the sending of multiple transactions concurrently and so-called “51% attacks”, where a malicious entity aims to control a network by setting up a node that is most likely to be responsible for verifying transactions. Blockchains prevent attacks through consensus mechanisms. Q: What is a Double-Spending? A: It is the fraudulent spending of the same digital currency or token multiple times. Knowledge provider：0xeddb693aaba0076ee0de3c822ae56d5c760e89b3 KNOW TO EARN is committed to building the world’s largest blockchain knowledge base and blockchain training academy. Through the interesting form of answering questions, more people can participate in the knowledge learning of the blockchain. You can see this knowledge now because there are a lot of people involved and contributing to the creation of blockchain knowledge. You can also be one of them and share up to 20% in bonuses. You dont need to spend any money, just use part of your spare time to participate in the creation of knowledge. Join our Telegram group to learn more. link: https://t.me/knowtoearn The content of Know to earn knowledge base is provided by users. If there is any infringement, please contact us to delete it as soon as possible. Original link：https://www.investopedia.com/terms/d/doublespending.asp