Principal Consultant

David Zielezna

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.

David Zielezna

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Company Culture

Meet David Zielezna, Principal Consultant at Cosive

David joined Cosive in 2021 after five years with the Australian Communications and Media Authority (ACMA) and eight years with the Australian Federal Police (AFP). David’s career has spanned many areas of cyber security, from fighting spam and securing the Australian IP address space all the way through to cyber crime investigations and assisting with the prosecution of cyber crime offences. Outside of cyber security David is an avid chef, producing home made charcuteries, ferments and all things delicious.