In a change that would have profound implications for the $13 billion digital advertising industry, the Federal Government is looking to define what counts as “personal information” in its overhaul of the nation’s privacy laws. Experts say the proposal in its most recent Discussion Paper, however, would include any digital identifier that is assigned to a specific user – even if the user isn’t explicitly named. That could cover most post-cookie ID initiatives currently being developed and even Facebook and Google’s audience matching platforms. Salinger Privacy's Anna Johnston, Bird & Bird partner Sophie Dawson, ADMA's Sarla Fernando, Luxury Escapes' Willem Paling and Guardian Australia's Dan Stinton weigh in on what brands, agencies and media should know.