Kevin Chung - 100 Points
Solved by 292 teams.

Kevin Chung
https://www.google.com/search?&q=Kevin+Chung

1) add 'security' or 'poly' to kevin's search:
2) find codekevin.com
3) shows hint that no key there, but references 'graduation'
4) https://www.google.com/search?&q=Kevin+Chung+high+school
5) Page 3 finds: https://hsf.isis.poly.edu/previous_winners
6) Which points to: https://hsf.isis.poly.edu/assets/uploads/pages/previous_winners/key.txt