>> and you know what -- >> the more this happens the more best practices may be redefined as well. we have to stop it there. thank you. terrific in us into a serious and developing story. brian stelter, richard quest and joey jackson, thank you. north korea spilled secrets from sony. a former insider is going to return the favor. a north korean defector talks about kim jong-un's network of hackers. [ man ] i remember when i wouldn't give a little cut a second thought. ♪