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Security competitions
First couple of google results for the query, "security hacking competitions":
https://en.wikipedia.org/wiki/Pwn2Own
^ $10,000-$25,000 USD cash prizes
^ If you can hack Google Chrome (good luck getting past the sandbox), you can make $1,000,000 USD. That's a decent amount of money, in my opinion. Not to mention, it would probably land you a job in Cupertino/Silicon Valley working for GOOOOOOOGLE (dream come true)! :D