Why is it important to write security rules in Firebase?

To access your rules from the Firebase console, select your project, then navigate to Realtime Database, Cloud Firestore or Storage . Click Rules once you’re in the correct database or storage bucket. To access your rules from the Firebase CLI, go to the rules file noted in your firebase.

In Realtime Database, Firebase Security Rules consist of JavaScript-like expressions contained in a JSON document. // Allow the request if the condition for each method is true.

Firebase Security Rules stand between your data and malicious users . You can write simple or complex rules that protect your app’s data to the level of granularity that your specific app requires.

Firebase is a cloud datastore that’s accessible directly from any connected client. Because any client can connect to any Firebase, you must write security rules to secure your data . Failure to write proper security rules will leave you wide open to attack.