In my iOS application I am using Firebase - Realtime Database, I want to keep track of responses in a global statistic that every user writes. How do I set up the rules so that they are secure and do not get anymore emails?

We've detected the following issue(s) with your security rules: any logged-in user can read your entire database any logged-in user can write to your entire database

• records: I want everyone who is authenticated to read.
• globalMetrics: I want everyone to have write access, so I can track statistics within the app.
• user: User can only edit their info.

{
  "rules": {
    "records": {
       ".read": "auth != null",
       ".write": false,
    },
    "globalMetrics":{
        ".read": "auth.uid != null",
        ".write": "auth.uid != null",
    },
    "user": {
       "$uid": {
        ".read": "auth != null",
        ".write": "$uid === auth.uid",
      }
    },
  }
}```