The Most Valuable Coin of the 21st Century by Jackie Ojeda. For decades, oil was considered the world's most valuable resource. Today that assertion has been overtaken by a different reality. Personal data has become the most coveted asset in the digital economy. Every internet search, online purchase, shared location, posted photo, or downloaded app generates information with enormous commercial value. The worrying thing is that most people hand over this data daily without knowing who collects it, how it's used, or with whom it's shared. Mexico is no stranger to this reality. According to the National Institute of Statistics and Geography, Enigi, more than 97 million people use the Internet, representing approximately 81% of the population aged six and older. At the same time, the Mexican Online Sales Association, AMVO, reports that more than 67 million Mexicans made online purchases in 2024, solidifying e-commerce as one of the fastest-growing sectors in the country. Behind every click lies a vast amount of information about consumption habits, preferences, location, purchasing power, and even aspects of daily life that can be used for commercial purposes. The problem isn't that companies collect data to improve their services, that practice can benefit both consumers and businesses. The real risk arises when information becomes a commodity marketed without sufficient transparency or when organizations lack adequate measures to protect it. Massive data breaches, identity theft, and digital fraud demonstrate that personal data also represents a vulnerability. Cybersecurity firm Kaspersky identified Mexico as one of the Latin American countries with the highest number of attempted cyberattacks targeting users and organizations. Meanwhile, IBM studies show that the average global cost of a data breach reached $4.88 million in 2024, the highest figure recorded to date. Beyond the economic impact on businesses, these breaches directly affect consumer confidence and can expose the financial, medical, or personal information of millions of people. Added to this is a growing challenge. Artificial intelligence. Today, algorithms can analyze vast amounts of information to predict behavior, personalize advertising, and even influence purchasing decisions. The digital economy no longer just sells products, it sells consumer profiles. The more information a platform has about its users, the greater its ability to anticipate their needs and direct highly precise marketing strategies. Protecting personal data is no longer solely the responsibility of companies. It has become a task for all citizens. Simple actions such as using strong and unique passwords for each service, enabling two-factor authentication, reviewing application permissions, avoiding sharing unnecessary information on social media, and keeping devices updated significantly reduce the risk of security incidents. It is also essential to read privacy policies and exercise the rights of access, rectification, cancellation, and opposition, ARCO, recognized by Mexican law. Businesses also have an essential role to play. Investing in cybersecurity, training their employees, complying with the federal law on the protection of personal data held by private parties, and adopting privacy by design principles are no longer just legal obligations, but competitive advantages. In a trust-based economy, protecting customer information is protecting any organization's most important asset, its reputation. Digital transformation will continue to accelerate, and the value of personal data will continue to grow. The question is no longer whether our information is being used, but whether we know who has it, what they are using it for, and how well it is protected. In the 21st century, protecting our data is equivalent to protecting our identity, our assets, and in many ways, our freedom.