Description: A fraudulent transaction refers to any financial operation carried out with the intention of deceiving or defrauding one of the parties involved. This type of transaction is common in the realm of online commerce, where criminals employ various tactics to obtain sensitive information, such as credit card numbers or personal data, in order to make unauthorized purchases. The main characteristics of a fraudulent transaction include the lack of consent from the account holder, the use of stolen or falsified information, and the deliberate intent to cause economic harm. The relevance of this phenomenon has grown exponentially with the rise of online commerce, as more consumers shop on the internet, which in turn has attracted scammers looking to exploit user trust. Detecting and preventing fraudulent transactions has become a priority for online businesses, which implement advanced security technologies, such as two-factor authentication and real-time transaction monitoring systems, to protect both consumers and their own interests.