What is SQL injection?

SQL Injection is a type of cybersecurity vulnerability that allows attackers to interfere with the queries an application makes to its database. By inserting or 'injecting' malicious SQL statements into input fields, attackers can gain unauthorized access to, modify, or delete data in the database. This vulnerability can lead to data breaches, loss of data integrity, and even complete control over the affected application. Proper input validation, parameterized queries, and regular security testing can help prevent SQL Injection attacks.