Just come it to my mind. is it possible? to get hook into your wallet and send some to another wallet? 
I think such type of hacking that is mentioned by you that " by your own wallet to hack another " .In my opinion it is not so simple wether you want to hack own wallet or of another because the securities in the Bitcoin wallet in the current time very power .
Since if you can get private key of any btc address ( wether address is your or not ) you use it for deal without any problem .