In my previous role, I discovered a SQL injection vulnerability during a routine code review. I immediately reported it to the development team and worked with them to implement parameterized queries and input validation. This experience reinforced the importance of thorough code analysis and collaboration between security and development teams to mitigate risks effectively.

I regularly attend industry conferences, participate in online security forums, and follow leading security blogs and newsletters. Additionally, I engage in continuous learning through certifications like CISSP and CEH. This helps me stay informed about emerging threats and adopt best practices to enhance application security.

To secure web applications, I implement input validation, output encoding, and secure cookies with the HttpOnly and Secure flags. I also use anti-CSRF tokens and ensure proper session management. Regular security testing, including penetration testing and code reviews, helps identify and address vulnerabilities proactively.

I advocate for integrating security into the SDLC through practices like Secure by Design, Threat Modeling, and Security Testing. By conducting security reviews at each development phase, we can identify and mitigate risks early, reducing the cost and effort required to fix vulnerabilities later in the process.

To secure an API, I would enforce authentication and authorization using OAuth2 or JWT tokens. I would also implement rate limiting, input validation, and HTTPS to protect data in transit. Regular API security testing and monitoring for anomalies are crucial to detect and respond to potential threats promptly.