SQL Injection Attack: What is it, and how to prevent it. The way that Yahoo! was hacked, SQL Injection attack, is the same method as many other hacks in the news recently: SQL Injection.

Tools are available that allow attackers to quickly check home-grown and third-party Web applications for SQL injection vulnerabilities, Wysopal said.

Microsoft this month described a test service designed to help SQL Azure users monitor the security of their databases housed in Microsoft's cloud.