I Accidentally Found a Bank Database Login and Password

I am not into php or mysql or web development but I found myself in a directory that I shouldn't be seeing in my bank website,

DB

dsn='mysql:host=localhost;dbname=wwwntb;charset=utf8'

uid=wwwntb

password=Nh8d7s6bbg++

So it looks like a database login credentials again it belongs to my bank website.

What are the possibilities over here that this is the admin access to manage the bank database????