Warning against inadequate privacy protections in the 2026 Census

Published July 28, 2026 at 9:02 PM UTC

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Key Points

Storing names and addresses indefinitely raises privacy and security risks.
Past data breaches and outages have eroded trust in the ABS's ability to protect data.
New sensitive questions may deter vulnerable groups from participating.
Lack of a binding guarantee against data-sharing with other agencies heightens fears.

Background History

The 2016 Census was disrupted by a distributed denial-of-service (DDoS) attack and an infrastructure failure, leading to a Senate inquiry that recommended better IT resilience. In 2021, a small number of census records were accidentally made accessible online, though the ABS said no personal details were exposed. Critics have also pointed to the 2006 introduction of names collection without a clear purpose.

While the Australian Bureau of Statistics promotes a digital-first census, serious privacy concerns remain that could undermine public trust and lead to an undercount. The 2021 Census saw the ABS collect names and addresses for the first time in decades, ostensibly for data quality checks, but stored indefinitely. Privacy advocates worry that expanding digital data collection, especially with new questions about gender identity and health, creates a tempting target for hackers or future government misuse. Although the ABS claims legal protections, past incidents—like the 2016 website meltdown and accidental release of some data in 2021—show lapses can happen. Vulnerable groups, including temporary visa holders, people with disability, and LGBTQ+ individuals, may be reluctant to disclose sensitive information if they fear it could be shared with immigration or welfare agencies. The ABS should offer a clear, legally binding guarantee that no census data will be used for law enforcement, immigration enforcement, or any purpose beyond statistics. Without stronger safeguards, mistrust may drive some people to avoid participation, resulting in an inaccurate count that shortchanges their communities for a decade.