You Already Have SD-WAN. SASE Is the Half You're Missing

Part 1 of 3: what SASE actually adds, and who Gartner calls a Leader

Aug 18 • Nelson Lopes

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Do AI detectors work? OpenAI shut down its own

I took a text from 100% AI to 100% human by changing two characters. Spare a thought for the people this gets backwards.

Aug 4 • Nelson Lopes

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July 2026

UPN different from email address - more security or more confusion?

Your username is 50% of everything needed to break into your account. Whether hiding it is worth the trouble is a different question.

Jul 28 • Nelson Lopes

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I Had One Email Address for Everything. Here's What Happened

How I use unique aliases to kill spam, track exactly who leaks my data, and protect my accounts - without switching everything at once

Jul 2 • Nelson Lopes

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June 2026

Cybersecurity Guide for Children and Teenagers

Practical Tips to Stay Safe Online

Jun 23 • Nelson Lopes

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Cybersecurity Guide for Teachers and Schools (and Other Institutions)

Protecting student privacy and school systems in an increasingly digital world

Jun 16 • Nelson Lopes

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Cybersecurity Guide for Parents and Guardians

Practical Steps to Protect Your Children Online

Jun 9 • Nelson Lopes

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Bank Cards - Learn How to Protect Them

From Magnetic Stripes to Digital Wallets: The Evolution of Bank Cards and How to Actually Protect Them

Jun 2 • Nelson Lopes

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May 2026

Password Management - Best Practices to Know

The Practical Habits That Keep Your Accounts Safe in 2026

May 26 • Nelson Lopes

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X updated its For You page algorithm - Here's what works now

Plus: How I went through the 20000+ lines of code of X's For You algorithm

May 19 • Nelson Lopes

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Don't let them see you - cover your camera

Spyware can be installed on your devices without you noticing, but with this simple control, all they'll ever see is darkness

May 5 • Nelson Lopes

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December 2025

The Hidden Cost of the AI Boom

From delayed proposals to rising hardware prices: how chip manufacturers' focus on AI Datacenters is reshaping IT procurement

Dec 16, 2025 • Nelson Lopes

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