Monday May 01, 2023

#127 - How to Stop Bad Guys from Staying on Your Network (with Kevin Fiscus)

In this episode of CISO Tradecraft, G Mark Hardy and guest Kevin Fiscus discuss the challenges of cybersecurity and the importance of prioritizing security decisions. Fiscus emphasizes the need for effective protective controls and detection measures, as well as the limitations of protective controls and the importance of detection. He suggests a "Detection Oriented Security Architecture" (DOSA) that includes high-fidelity, low-noise detection, automated response, and continuous monitoring. Fiscus also discusses the concept of cyber deception and proposes a new approach to cybersecurity that involves redirecting attackers to a decoy environment.

Kevin Fiscus:

Full Transcripts:


  • 00:00 Introduction
  • 04:55 The Average Time to Identify Bad Actors is 28-207 days
  • 07:11 Why Protective Controls Don't Always Work
  • 08:32 Protective Controls Create Resistance
  • 10:34 The Cost of Detecting Bad Guys on Your Network
  • 12:40 The Effects of Resistance on Protective Controls
  • 15:56 The Problem with False Positive Alerts
  • 20:08 How to Define Bad Guy Activity with 100% Accuracy
  • 22:09 The Four Components of Security
  • 24:14 Four Components of Detection Oriented Security Architecture (DOSA)
  • 26:17 Differentiating between Monitoring & Alerting
  • 27:13 High Fidelity and Low Fidelity Alerts 
  • 33:06 Setting a Squelch for Radios
  • 31:37 How to Deal with False Negatives
  • 33:56 The Importance of Non Production Resources in Detection
  • 37:56 How to Use Cyber Trapping to Deceive an Attacker
  • 42:54 The Role of Environment Variability in Deception
  • 47:08 Blowing Sunshine at Attackers

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