![Some employers are 'establishing a business model' around vulnerable, low-paid visa workers.](/web/20161015203728im_/http://www.smh.com.au/content/dam/images/g/h/5/l/v/s/image.related.wideLandscape.460x259.gs30ki.png/1476528234533.jpg)
Backpacker work visa scheme risks becoming 'black market'
Backpackers on Australian working-holiday visas are being grossly underpaid, or in some cases paid nothing at all, as authorities fear the program is becoming a "black market" for exploited labour.