API (Application Programming Interface) security focuses on preventing or mitigating attacks on APIs and APIs are becoming more and more common within companies of every size. APIs fuel digital transformation. They are essential components of business-critical, customer-facing applications, development environments, and partner-facing services. Because of this APIs are a primary target for attackers it is therefore critical to protect the sensitive data they transfer. An insecure API can be an easy target for hackers to gain access to an otherwise secure computer or network.