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Alleged data breach, public servant charged

Internal monitoring detected the alleged transfer, and police say the stolen data was secured with no external compromise to the agency’s system.

  • On Monday, NSW Police arrested and charged a 45-year-old NSW Treasury employee with accessing restricted data after allegedly downloading more than 5,600 sensitive documents; the bureaucrat faces Downing Centre Local Court on June 3.
  • NSW Treasurer Daniel Mookhey said internal security monitoring detected the alleged movement of a large cache of documents to an external server between April 10 and 14, with the government escalating the matter on Friday.
  • The employee worked in Treasury's commercial team for three years, handling sensitive government negotiations and procurement. Police confirmed the allegedly stolen data has been secured with no external system compromise.
  • Declaring the breach a "significant cyber incident," the NSW government tasked the NSW Chief Cyber Security Officer with coordinating a whole-of-agency response, as Mookhey emphasized cyber risks are affecting every sector.
  • Other NSW government agencies have faced similar breaches, including the hacking of some 9,000 files from JusticeLink in March 2025, highlighting persistent cyber vulnerabilities across government systems.
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11 Articles

PerthNowPerthNow
+2 Reposted by 2 other sources
Center

Alleged data breach, public servant charged

A public servant has been charged after allegedly accessing and illegally downloading more than 5600 sensitive government documents.

·City of Perth, Australia
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Sydney Morning HeraldSydney Morning Herald
+2 Reposted by 2 other sources
Lean Left

Treasury official charged over alleged data breach involving thousands of government documents

More than 5600 sensitive documents had allegedly been accessed and downloaded.

·Sydney, Australia
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iTnewsiTnews
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cybernoz.comcybernoz.com

NSW Treasury staffer allegedly exfiltrated 5600 sensitive documents

Charges laid.

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  • 38% of the sources lean Left, 37% of the sources lean Right
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Sydney Morning Herald broke the news in Sydney, Australia on Tuesday, April 21, 2026.
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