David Zielezna
Principal Consultant
Prior to working at Cosive, David Zielezna served at ACMA and the Australian Federal Police. David also provided MISP subject matter expertise on the ACSC's CTIS project, is a contributor to the MISP project, and is regarded as one of Australia's foremost threat intelligence experts.
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David Zielezna
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Company News
Meet David Zielezna, Principal Consultant at Cosive
Posts from the Cosive team
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Threat Intelligence
When Threat Intelligence Outgrows the Spreadsheet: Moving to MISP
Security Operations
How the ASD June 2026 ISM Uplifts CTI Programs
Threat Intelligence
MISP Beta UI/UX Mode (v2.5.32): A Walkthrough from Contributor Chris Horsley
Threat Intelligence
MISP 2025 Retrospective: Monthly Highlights & Workflow Improvements
Podcast
Why CISOs Should Care About Cyber Threat Intelligence with Joe Cozzupoli