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Preparing for and Defending OT Systems from Ransomware

Talkat RSAC 2023 · 2023-04-24..04-27· [security]
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Ransomware hits OT because uptime matters: examples include Colonial Pipeline, JBS and Rackspace and Trend Micro shows Microsoft, VMware, Fortinet and Adobe are top exploited. Root causes are admin:admin default credentials, exposed VPNs and living‑off‑the‑land tooling; mitigation is a risk‑based crown‑jewels inventory, network segmentation via the Purdue Model, monitored external access with MFA and jump hosts, and deployable detection like Security Onion plus SANS/CISA playbooks and tested incident response with pre‑decided ransom thresholds.

AI-written summary · about

  1. 0:00Start
  2. 9:22How did threat actors gain access?
  3. 13:50Where do I start?
  4. 20:39Purdue Model
  5. 29:15If you need remote access, do it RIGHT.
  6. 32:03RISK-BASED Vulnerability Management
  7. 35:27Apply what you've learned today
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