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So Long, and Thanks for All the Phish

Harrison SandErlend Leiknes

Analyzes the evolution of enterprise phishing defense and demonstrates novel reverse-proxy adversary-in-the-middle tradecraft to bypass modern authentication.

Summary

The Arms Race in Enterprise Phishing

As organizations deploy automated email filtering, domain reputation checks, and multi-factor authentication, phishing operators continuously adapt their delivery mechanisms and credential harvesting infrastructure.

Adversary-in-the-Middle (AiTM) Tradecraft

Harrison Sand and Erlend Leiknes demonstrate advanced AiTM proxy architectures that capture live session cookies and authentication tokens in real time, bypassing traditional SMS and app-based MFA.

Evasion of Modern Email Defense Platforms

Techniques for leveraging legitimate SaaS platforms, CAPTCHA obfuscation, and dynamic user-agent fingerprinting allow phishing kits to evade automated security sandbox analysis.

Implementing Phishing-Resistant Authentication

Effectively countering modern AiTM phishing attacks requires organizations to transition to FIDO2 WebAuthn passkeys, enforce device attestation, and deploy conditional access policies.

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