iPhone and iPad Apple devices are getting “locked” by hackers and demanding $100 to unlock the devices.
More about the problem here: https://discussions.apple.com/thread/6270410?start=0&tstart=0
So far, this is only happening in Australia, but it could happen to those Apple device users elsewhere.
Fortunately there seems to be an easy preventative measure and that is to have a passcode on your device, which is probably a good idea anyway.
To enable the passcode feature, users should go to Settings > (Touch ID &) Passcode and then set up the security features for their device.
News story here
That is all