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Aussie publisher Hachette restoring systems following ‘detection of unauthorised activity’ on network

Bookstores are facing stocking delays in the wake of a cyber attack, as the publisher says a timeline for return to full operations is impossible to judge.

Thu, 27 Aug 2026
Aussie publisher Hachette restoring systems following ‘detection of unauthorised activity’ on network

Book Week is one of the red-letter days of the Australian calendar, as parents help their children celebrate their favourite books with elaborate costumes.

But to celebrate books, you kind of need books, and a cyber security incident impacting one of Australia’s largest publishers, Hachette, is causing all manner of issues getting books on shelves.

“Hachette Australia & New Zealand and Alliance Distribution Services (ADS) are continuing work to safely restore systems and services following the detection of unauthorised activity on our computing systems on 18 July,” a Hachette spokesperson told Cyber Daily.

 
 

The publisher said it has informed the relevant authorities and is working to get its systems back online.

“Teams across Hachette ANZ and ADS, supported by specialist teams from across Hachette in the UK and US, are working to restore affected systems, with testing underway as they come back online. While progress is being made, we are not yet in a position to confirm a timeline for a full return to normal operations.

“Our investigation into the incident remains ongoing, and we are not in a position to provide further detail at this time. It is important that we complete the necessary work so that any information we provide is accurate,” it said.

As to the booksellers impacted by the incident, Hachette said it is working closely with them.

“We have been communicating directly with authors, booksellers, agents, industry partners and staff throughout the disruption,” Hachette said.

“Restoring full operations securely remains our top priority, and we are grateful for the patience and support of everyone across the industry while we work through this.”

Hachette did not say if any data had been impacted during the incident, and, as of the time of publishing, no threat actor has claimed responsibility for the attack.

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