Description: Malicious data refers to data that has been designed with the intent to cause harm, exploit vulnerabilities, or compromise the security of computer systems. This data can manifest in various forms, such as malware, viruses, trojans, ransomware, and phishing, among others. Its main characteristic is that it seeks to infiltrate systems, steal sensitive information, damage files, or even take control of devices. In the context of cybersecurity, malicious data is a focal point for study and analysis. Various tools and methodologies exist to detect, analyze, and mitigate this data, allowing cybersecurity professionals to better understand how it works and how it can be neutralized. The relevance of malicious data lies in its ability to affect both individuals and organizations, jeopardizing the privacy and integrity of information. Therefore, knowledge about this data is essential for anyone involved in information security.