Flaw discovered in COVID vaccine certificates

The discovery of a flaw in COVID vaccine certificates raises questions around putting a hold on freedoms allowed to the vaccinated by the state and federal governments.

Richard Nelson, a software engineer in Sydney, has found a security flaw in the Express Plus Medicare app, allowing him to make vaccine certificates with any name and date of birth and even featuring the background animations meant to prevent forgery.

The vaccine certificate is expected to get an overhaul in October, though it is not clear if the new version will only be used for international travel and work alongside the existing vaccine certificates.