Firebase Security Rules gate your user’s access to and enforce validations for Firestore, Firebase Storage, and the Realtime Database. It’s important to code review the Security Rules, just like you code review the application code. Because these rules are written in a domain-specific language, that puts some people in the position of code reviewing something they don’t feel like they understand.
![How to code review security rules](https://cdn-ak-scissors.b.st-hatena.com/image/square/190df45ec2a39064764c62ac5c00830d5a59979c/height=288;version=1;width=512/https%3A%2F%2Ffirebase.blog%2Fimg%2Fog.png)