Amanda Tucker

41 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

A technical guide comparing symmetric and asymmetric encryption, covering AES, RSA, and ECC, and how TLS combines both into the hybrid model that secures the modern web.

PKI/Certificates August 5, 2026

Symmetric vs. Asymmetric Encryption: How Each Works and When to Use Them

Every time a browser loads an HTTPS page, a virtual private network (VPN) establishes a tunnel, or a digital certificate is issued, two distinct encryption models work together. Understanding how...

A technical guide to the federal standard that governs cryptographic module validation, covering security levels and the CMVP process.

Protocols & Standards July 29, 2026

FIPS 140-3 Explained: A Guide to Compliance

Federal agencies and their vendors operate under a straightforward rule: any cryptographic module handling sensitive data must be validated against a FIPS 140 standard. That rule has not changed since...

Pass the hash lets an attacker walk into your Active Directory environment.

Risks & Threats July 27, 2026

What Is a Pass-the-Hash Attack, and How Does It Work?

A stolen password hash can be just as valuable as the password itself. Pass the hash exploits reusable NTLM hashes to let attackers authenticate without ever knowing the user’s password....

Securing satellite-powered networks like Starlink requires identity-based authentication to eliminate the risk of shared credentials in remote deployments.

Wi-Fi & Wired Security July 16, 2026

Securing Starlink Wi-Fi With 802.1X and Cloud RADIUS

Distributed Wi-Fi networks are undergoing a profound transformation in industries around the globe. Satellite providers such as Starlink are now enabling high-throughput, low-latency connectivity in the air, on the seas,...

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...