In addition to issue #10 and as evident from [this report](https://noless.io/report/-L7-_vTY7hdI4RSIBJ6d/5c5aafcb-5a25-4e32-b5c7-b913b957de76) there are two security issues with the current Firebase Database Rules: 1. Attackers can obtain Admin privileges and manipulate users' data by arbitrarily write to `/admins` and `/users`. 2. Anyone can read `/products`. I'm not sure it's an issue.