APIs not only offer your consumers access to your application’s services and data, but if not properly secured through multiple layers provides a backdoor into your entire network. That has quickly made API vulnerabilities one of hackers favorite targets – endangering your customers, and subjecting your company to a series of potential fines and legal costs. This is why it is so important to understand not only the basics of API security, but the layers of API security ranging from client authentication and authorization, to DDoS and malicious input detection and prevention, to network firewalls and container security.