**Task:** De Monne wants to know how many branch offices were included in the database leak. This can be found by figuring out how many unique cities the employees live in. Submit the flag as flag{#}.

I solved this challenge directly using `distinct values` button on phpMyAdmin without the need to make a sql request.

Here is the corresponding sql request:
```sql
SELECT COUNT(*) FROM (SELECT DISTINCT city FROM customers) as dt;
```

Anwser : 460 cities.

Original writeup (https://github.com/hhassen/writeup_deadface_2021/blob/main/sql.md).