Amanda Tucker, Author at SecureW2

Amanda Tucker

37 articles published

12 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.

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Amanda

Learn how Microsoft Cloud PKI and Cloud RADIUS work together for 802.1X authentication.

Integrations June 11, 2026

Microsoft Cloud PKI and Cloud RADIUS Integration Guide

Learn how Microsoft Cloud PKI and Cloud RADIUS work together to enable cloud-managed 802.1X authentication.

A practical guide to recognizing a malware infection and stopping compromised machines from spreading damage across your network.

Risks & Threats June 5, 2026

What Is a Malware Infection? Signs, Causes, and Prevention

Every year, attackers refine the ways they deliver malicious software into enterprise environments. A single successful malware infection can escalate from one endpoint to shared file servers, cloud workloads, and...

Prepare for the 2026 RADIUS CA migration before G1 trust removal causes Wi-Fi outages.

RADIUS June 3, 2026

RADIUS CA Migration: What Happens If You Don’t Migrate by the End of 2026

When Mozilla and Chrome removed DigiCert G1 from their browser trust stores on April 15, 2026, the internet lit up with guides about which TLS certificates to renew and how...

AD CS exposes hospitals to patient safety, network security, and compliance risks.

PKI/Certificates June 2, 2026

Replacing AD CS in Healthcare: Why Hospitals Are Moving to Cloud PKI

A hospital’s Active Directory Certificate Services (AD CS) server fails on a Tuesday morning. Workstations on wheels stop authenticating to Wi-Fi, barcode medication administration freezes at the bedside, and the...

A practical comparison of legacy “set and forget” certificate issuance against dynamic PKI trust validation that re-checks trust on every authentication.

PKI/Certificates May 27, 2026

Static PKI vs. Dynamic PKI for Continuous Validation: Benefits and Features

For two decades, enterprise PKI ran on a simple bargain. Issue a long-lived certificate, trust it until expiration, and clean up revocations on a quarterly cycle. That bargain breaks the...

A technical guide explaining how port 443 works, what TLS certificates do during the handshake, and how the same certificate trust model that secures HTTPS also secures enterprise Wi-Fi and network authentication.

Protocols & Standards May 27, 2026

What Is Port 443 and How Is It Used for HTTPS and Network Security?

Port 443 is the dedicated port for HTTPS interactions, and as such, facilitates a basic component of everyday web browsing. You can think of port 443 as a conduit facilitating...

Learn how Cloud RADIUS and hardware attestation detect PKI key migration.

PKI/Certificates May 27, 2026

Detecting Certificate Migration: How to Track a PKI Key Across Devices

A certificate is only as trustworthy as the device holding its private key. If an attacker exports a key from one laptop and installs it on another, every system that...

A technical guide to the User Datagram Protocol — covering how UDP works, why RADIUS runs over UDP on ports 1812 and 1813, the security limitations of RADIUS/UDP and when to migrate to RadSec.

Protocols & Standards May 22, 2026

What Is the User Datagram Protocol (UDP)?

UDP is one of the two foundational transport protocols in the TCP/IP stack. The protocol is simple, fast and stateless — and those same properties make it the right choice...

Self-signed = self-sabotage..

Risks & Threats May 20, 2026

Self-Signed Certificates: Risks, Use Cases, and Safer Alternatives

A self-signed certificate is one that is signed by the same entity that created it, rather than by a trusted Certificate Authority (CA). Self-signed certificates provide encryption but offer no...