Your Ransomware Playbook Will Fail – Inside the Real TTPs Behind Australia’s Worst Extortion Breaches

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Presented at Hack Sydney 2025 by

Gaurav V.

Most ransomware playbooks collapse under real-world pressure. Based on Australian breaches like Medibank and HWL Ebsworth, this talk reveals how RansomOps groups like LockBit and BianLian bypass EDR, wipe backups, and use staged extortion tactics to force payment. We’ll show you where defences fail, how some orgs survived without paying, and what actually works - before you become the next headline.