When an interviewer asked about the importance of input validation in application security. The answer to this question is below

What is the importance of input validation in application security?

Input validation is crucial in application security as it serves as a frontline defense against various cyber threats. By validating and sanitizing user inputs, we ensure that the data provided to the application meets the expected criteria, preventing malicious inputs that could lead to vulnerabilities such as SQL injection or cross-site scripting.