Artists go to extreme lengths to avoid music hackers

It's almost a daily occurrence in the music industry - a half-finished track by an artist being leaked online.

Some acts have been explaining the extraordinary lengths they go to to try to prevent hackers getting to their incomplete material before its release.

"I try my best to understand how the hackers get your music in the first place, then avoid doing things like that. They can hack email addresses so I never email songs. "I hold onto physical copies of it. You keep it on a USB stick or you send a direct peer-to-peer stream to someone which can't be intercepted. I understand with the hackers that they're excited, and they're most likely fans and they just want it now.