How do you ensure the security of sensitive data when using third-party APIs?

In my final year project, I developed a web application that integrated a third-party weather API to provide real-time data to users. To ensure the security of sensitive user data, I implemented HTTPS for secure data transmission and used environment variables to store API keys instead of hardcoding them into the codebase. Additionally, I made sure to only request the necessary data from the API and validated responses to prevent any potential security issues. This experience taught me the importance of protecting user information, even in smaller projects, and gave me a hands-on understanding of secure API usage.

While volunteering for a local non-profit, I helped manage their database and integrated a third-party donation platform to handle sensitive donor information. I ensured that all data transmission was done over HTTPS and worked with the team to set up secure authentication processes for accessing the donation data. We conducted regular audits to identify any potential vulnerabilities in the data handling process. This experience reinforced my understanding of how crucial it is to maintain data security, especially when dealing with sensitive financial information.

In my first job as a junior developer, I was tasked with integrating a third-party API for payment processing. To ensure the security of customer data, I implemented token-based authentication and ensured all sensitive data, like credit card information, was encrypted during transit and at rest. I also collaborated with the security team to review our API usage and established guidelines for securely handling API keys and tokens. This experience gave me practical insights into the security measures needed when working with third-party services and the importance of ongoing security assessments.