Overreliance on API Keys is a common mistake, as keys are not designed for sole authentication and lack critical functionality.Smart Authorization Flows are crucial for secure systems, emphasizing the importance of role-based and attribute-based access control.Proper encryption in transit and at rest is essential, urging developers to keep encryption methods updated and secure.Using outdated or vulnerable third-party dependencies poses risks, highlighting the need for auditing and updating regularly.Standard authorization and authentication practices are vital for consistent security across development teams.Implementing rate limiting and throttling is crucial to prevent abuse and protect against various attack vectors.Ensuring sufficient data filtering is important to prevent exposure of sensitive information and promote a security-first mindset.Maintaining proper logging and monitoring practices helps detect security incidents and mitigate concerns in real-time.Improper CORS configuration can lead to security vulnerabilities, stressing the need for strict domain restrictions and monitoring.Developers should focus on a holistic security posture, addressing common anti-patterns to maintain a secure API environment.