What Azure service can you use to protect against SQL injection attacks?

The Azure Web Application Firewall (WAF) is designed specifically to protect web applications from various threats and vulnerabilities, including SQL injection attacks. SQL injection is a type of attack where malicious SQL statements are inserted into an entry field for execution, potentially compromising the application and the database behind it.

WAF operates at the application layer and inspects incoming HTTP requests, filtering and monitoring traffic to and from web applications. It uses predefined rules to identify and block common threats, such as SQL injection, cross-site scripting, and other vulnerabilities related to the Open Web Application Security Project (OWASP) Top Ten security risks.

By employing WAF in front of your web applications, you ensure that potentially harmful SQL queries and other malicious requests are detected and blocked before they can reach the application layer, effectively minimizing the risk of data breaches and ensuring the security of your SQL databases.

The other services mentioned, while valuable in the Azure ecosystem, do not specifically focus on protecting against SQL injection attacks. Application Insights is mainly used for monitoring application performance and usage, the Azure Security Center provides overall security management and threat protection for various Azure resources, and Azure Data Lake Storage is focused on storing and analyzing large amounts of data rather than application-level security threats.