Zero Trust Architecture & Phishing Defense

"Never Trust, Always Verify", Spear Phishing, and Hardware Security Keys (FIDO2/WebAuthn)

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Traditional castle-and-moat security assumes anyone inside the corporate intranet is trusted. Zero Trust assumes breaches are inevitable, enforcing continuous verification for every request.

The 3 Tenets of Zero Trust Architecture

1Verify Explicitly: Always authenticate and authorize based on all available data points (user identity, device health, location, workload).

2Use Least Privilege Access: Limit user access with Just-In-Time (JIT) and Just-Enough-Access (JEA) policies.

3Assume Breach: Minimize blast radius by segmenting networks, encrypting all end-to-end traffic, and conducting continuous anomaly monitoring.

Phishing Resistance: Hardware security keys (YubiKeys using FIDO2/WebAuthn) cryptographically bind authentication to the exact domain origin, making credential harvesting phishing impossible.

Pro Tip

Over 80% of enterprise security breaches begin with social engineering or phishing emails rather than technical software bugs.

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Test Yourself With Exercise

+15 XP

What is the foundational philosophy behind Zero Trust Architecture?

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