I believe they want to see if it is indeed the world's most secure cryptocurrency not to be able to hack into so they can use it themselves.
![Wink](https://bitcointalk.org/Smileys/default/wink.gif)
I believe into this line though which it isnt surprising if these side intentions is attached into this kind of bug bounty activity.If someone would able to do so
or lets just say that the did able to crack it out then do we really believe that they would announce it out? For sure it would be kept on secret
and do utilize and use that bug for that common purpose which is generally pertaining when it comes to tracing thing.