The Fintech industry, which handles large volumes of sensitive financial and personal data, faces significant cybersecurity challenges due to its attractiveness to cybercriminals. Ensuring robust data security requires comprehensive monitoring and analysis of security data to detect breaches, identify vulnerabilities, maintain regulatory compliance, and protect customer information. Challenges in this realm include dealing with outdated legacy systems, managing complex and voluminous data, and addressing issues of limited visibility and false positives. Solutions to these challenges involve implementing observability platforms, normalizing data formats, integrating legacy systems, and employing machine learning algorithms to enhance threat detection and reduce fraud. Tools like Coralogix's observability dashboard and Mastercard's Decision Intelligence technology exemplify how fintech companies can improve their security infrastructure to stay ahead of evolving cyber threats.