so ka is hosting a contest,
https://www.khanacademy.org/computer-programming/contest-cybersecurity/4824110630879232
, and in addition to the contest, the ka council made a cool little hacking minigame where you try to interpret the code to figure out the username and password.
so in addition to this being something cool i can share, it's a reason why ka is awesome
edit:
I decided to make this the most viewed post on the forum, so,... yeah