(CNN NEWSOURCE) A 10-year-old hacker won a $10 thousand reward from Facebook after finding a security flaw in its Instagram app.
The boy is identified as "Jani" from Helsinki, Finland.
He says the bug allowed him to delete other people's comments.
In fact, he told a Finnish newspaper that he could've deleted comments from Justin Bieber if he wanted to.
Facebook has owned the Instagram photo sharing app since 2012.
The company says the bug was fixed in late February. Jani received his payment in March.
Facebook started a "bug bounty" program in 2011.
It rewards hackers when they report tech security issues.
The program has paid out more than $4 million to people all over the world.
10-year-old "Jani" is the youngest person to receive a reward. He says he plans to spend his money on a bike and a soccer ball.