The Weakest Link

How to Diagnose, Detect, and Defend Users from Phishing

Arun Vishwanath

• Publisher: The MIT Press
• Year: 2022
• Topic: Computer Science
• eBook ISBN:
  9780262371971
• Subtopic: Cyber Security
• Index: Computer Science

Phishing is the single biggest threat to cybersecurity, persuading even experienced users to click on hyperlinks and attachments in emails that conceal malware. Phishing has been responsible for every major cyber breach, from the infamous Sony hack in 2014 to the 2017 hack of the Democratic National Committee and the more recent Colonial Pipleline breach. The cybersecurity community's response has been intensive user training (often followed by user blaming), which has proven completely ineffective: the hacks keep coming. In The Weakest Link, cybersecurity expert Arun Vishwanath offers a new, evidence-based approach for detecting and defending against phishing—an approach that doesn't rely on continual training and retraining but provides a way to diagnose user vulnerability.

Vishwanath explains how organizations can build a culture of cyber safety. He presents a Cyber Risk Survey (CRS) to help managers understand which users are at risk and why. Underlying CRS is the Suspicion, Cognition, Automaticity Model (SCAM), which specifies the user thoughts and actions that lead to either deception by or detection of phishing come-ons. He describes in detail how to implement these frameworks, discussing relevant insights from cognitive and behavioral science, and then presents case studies of organizations that have successfully deployed the CRS to achieve cyber resilience. These range from a growing wealth management company with twenty regional offices to a small Pennsylvania nonprofit with forty-five employees.

The Weakest Link will revolutionize the way managers approach cyber security, replacing the current one-size-fits-all methodology with a strategy that targets specific user vulnerabilities.

Table of contents

• Cover
• Title Page
• Copyright
• Contents
• Acknowledgments
• Introduction
• 1. How Social Engineering Evolved
• 2. What Makes Social Engineering Possible
• 3. How Cisos are Dealing with Social Engineering
• 4. Why do People Fall for Social Engineering?
• 5. The Key Symptom
• 6. Performing an Accurate Diagnosis
• 7. Conducting A User Cyber Risk Assessment
• 8. From Cyber Risk to Cyber Hygiene
• 9. A Tale of Five Implementations
• 10. Reversing the Social Engineer’s Advantages