Finastra, one of the world's top three FinTech companies, faced significant challenges in securing its APIs. APIs form the core of Finastra's service, connecting banks with FinTech services. However, API security has become increasingly complex over the years, with attacks on the rise and traditional application security tools failing to provide adequate protection. The company's API traffic grew by 51%, while malicious traffic increased by 211%. Attackers have realized that APIs are now used for more business-critical services and share an increasing amount of sensitive data, leading to a heightened focus on exploiting APIs for attacks. Finastra faced internal and regulatory pressures to secure its APIs. The company needed a solution that could prevent account takeovers, identify abnormal behavior, and differentiate between 'normal' abnormal (e.g., a changed API) and malicious traffic.