In my school, eleventh grade (so nearly "Abitur", A levels), we got the task to create a program which will be running on every computer here which should replace the Classbook (like a book where homework and lessons and stuff is written down).
Now, the class before mine already did a part of that, a program to share who is ill/not at school, with a mark whether it is excused or not.
So far so good. They all seemed not that bad when they were presenting it to us. Then, the first thing: they didn't know what git is. Well, okay I thought.
Next, there was this password field to access the program. One of them entered the password and clicked enter. That seemed suspiciously fast for an actual secure login. So fast, the password could have been in the Code...
Yesterday I copied that program and put it into a decompiler.
And... I was right.
There were the login credentials in plain text. Also, haven't thought of it but, IP address + username + password + database name were there in plain text, too.
Guess I am going to rewrite this program down to the core