• NSW Treasury staffer accused of exfiltrating 5600 sensitive documents.
• Documents contain confidential commercial and financial information.
• Breach detected via internal security monitoring.
• Police believe all alleged stolen data has been located and secured.

This alleged data breach may indicate vulnerabilities in NSW government cybersecurity, which could have significant implications for data protection and confidentiality. The incident suggests that internal security monitoring may be effective in detecting breaches, but it also highlights the need for robust cybersecurity measures to prevent such incidents.