Phones feel magical. But it helps to understand a little about how that magic works – just enough to avoid the kinds of traps that cost money, data, or nerves when you least need them.

In 2025 we wrote a bunch of pieces where our engineers explain what’s happening on the other side of your phone screen.

Here’s our 2025 recap.

Security Guide series

The Invisible Threat
What public Wi-Fi networks actually are, and why using them is basically handing out business cards with your passwords on them.

How Much Does Free Wi-Fi Really Cost You?
“Free” usually has a price. Here’s what you’re actually paying.

Why MTX Connect Means Security: The Private Network Story
What actually happens to your data when you connect with a SIM or eSIM – where it goes and whether anyone can access it.

Mobile operators vs resellers

What’s the difference between a mobile operator and an eSIM provider?
Some focus on running the network and taking responsibility. Others focus on sales.

Responsibility of Modern Mobile Operators
What mobile operators are accountable for (and how), and why that responsibility isn’t optional.

Behind the Service

Why Human
Person or transaction? Why actual human support is so rare and valuable these days.

One MTX Account, Whole Family Connected
Peace of mind knowing your family members and all your devices stay connected and under control.

The ultimate €10 investment guide for dummies (and smart guys too)
A playful guide with a serious point: depositing €10 (without even spending it) can save you a surprising amount of money – and stress.

And here’s what happens if you skip this one: Why Your Plan Needs A Backup Plan

More coming in 2026: what your eSIM knows about you, privacy vs. security, and other things worth understanding.

Want us to explain something specific? Just ask.

Safe travels

Jan Verny, MTX Connect Chronicler