Firebase - what is the minimal security rules for the tables in order to protect your data e.g. from unauthenticated users / hackers -

firebase - minimal security rules tables in order protect data e.g. unauthenticated users / hackers

i go live , have tables set true read , write.

thank you.

{   "rules": {           // authenticated user can read           ".read": "auth != null",           // authenticated user can write           ".write": "auth != null",      } }