So the media is now adding fuel to the fire for the removal of the Australian $50 and $100 notes: they're being counterfeited.
So they caught $365k in $100 notes in circulation and $1.1 million in $50 notes that were actually counterfeited. So of all of the money in circulation, they caught about $1.5 million in 2016.
That sounds like cause enough to cancel all $50 and $100 notes.
There's no way that this is all just a smoke screen to justify forcing everyone to digitize their money and keep it in banks.