Amanda Tucker, Author at SecureW2

Amanda Tucker

53 articles published

14 topics covered

About

Amanda Tucker covers network security at SecureW2, where she has spent 5 years writing about PKI, RADIUS authentication, 802.1X, continuous trust, and device onboarding. She translates complex certificate and authentication concepts into practical guidance for IT and security teams. Amanda brings 7 years of professional writing experience and a background in research and analysis.

Cited by

Articles by

Amanda

Discover how combining PKI certificate-based identity with IEC 62443 zone-and-conduit network segmentation protects critical industrial operational technology (OT) systems.

PKI/Certificates September 15, 2026

Securing OT Environments With PKI and Network Segmentation

Operational technology (OT) used to sit far away from the internet, tucked inside factories and utility plants where nobody worried much about hackers. That world is gone. Industrial systems are...

SecureW2 pairs with Okta to deliver passwordless, certificate-based access to Wi-Fi, VPN, and apps. Okta stays the identity source; SecureW2 issues the certificates.

Integrations September 14, 2026

How SecureW2 Works With Okta to Strengthen Your Security Defenses

As of January 2025, Okta FastPass adoption nearly doubled year over year, climbing from 6.7% to 13.3%, and for good reasons: Organizations are recognizing that passwords alone cannot reliably defend...

Renewing a Sectigo RADIUS server certificate can silently break 802.1X for part of your fleet. Here's why it happens and how to fix it.

PKI/Certificates September 14, 2026

USERTrust to Sectigo R46: Fixing Server Certificate Validation Failures on Your RADIUS Server

You renewed your RADIUS server certificate, and now a subset of devices running certain operating systems can’t join the network. Nothing changed on the Wi-Fi, so why aren’t the devices...

SCEP certificate deployment breaks at predictable points in the enrollment chain, and most failures can be diagnosed without opening a support ticket.

Integrations September 6, 2026

Intune SCEP Not Working: A Diagnostic Guide for Certificate Deployment Failures

The failure can originate at any point in a seven-step communication chain: from the moment Intune pushes the profile, through the device’s request to NDES, through certificate issuance by the...

IETF AIMS is an early IETF draft framework for giving AI agents verifiable identity. SecureW2 Dynamic PKI issues the certificate-based identities models like AIMS depend on.

Protocols & Standards September 1, 2026

What Is IETF AIMS? AI Agent Identification With SPIFFE and OAuth 2.0

AI agents are evolving quickly, and modern security standards haven’t kept pace. In lieu of new protocols and regulatory policies, deployers of agentic AI have a responsibility to manage their...

How ECDSA and RSA compare on key size, performance, EAP-TLS use, and post-quantum readiness

PKI & Certificate-Based Authentication August 30, 2026

ECDSA vs. RSA: Which Algorithm Is Better for Security?

Choosing between ECDSA and RSA for your enterprise certificates is not a theoretical question. It affects how fast your 802.1X authentications complete, how much load your Remote Authentication Dial-In User...

A plain-language guide to extended validation SSL certificates: what the CA/Browser Forum requires, why the green address bar is gone, and when EV is worth the extra vetting.

PKI/Certificates August 29, 2026

What Is an EV SSL Certificate? Do You Need One?

Not every website needs the same level of certificate vetting. A personal blog is fine with a domain-validated certificate issued in minutes. A bank processing wire transfers has a different...

Learn how to manage certificate revocation for shared devices without disrupting network access.

PKI/Certificates August 20, 2026

PKI for Education: Handling Certificate Revocation for Shared Devices

A 1:8 Chromebook cart can quietly break around the eighth or tenth student login, when the per-user certificate stops re-installing and the entire cart drops off Wi-Fi. The same break...

Quantum encryption and post-quantum cryptography represent two different answers to the same problem: the looming threat of quantum computers against the encryption protecting your network today.

Protocols & Standards August 13, 2026

What Is Quantum Encryption and How Does It Work?

Every authentication event on your network relies on encryption to verify identity and protect the session. For decades, the math underlying that encryption has been treated as unbreakable in practice....