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Just hold your phone up to a terminal and within moments the payment is made. However, NFC technology is capable of much more. We will explain what NFC is and how it works, what actually happens during NFC mobile payments, what else you can use it for, and how secure it is. We will also show what NFC tags are and how they can simplify some daily tasks.

What if there was a full-day internet outage? An immediate collapse of society wouldn't occur, but daily operations would quickly become complicated because today's world is more dependent on the internet than we often realize. Which services would stop functioning first, and what would happen with payments, transportation, or work?

WPA, WPA2, WPA3, AES or TKIP? Wi-Fi security settings might initially seem unnecessarily complicated. However, when you understand what each abbreviation stands for, it becomes fairly simple. Therefore, we'll explain the differences between them and which is the best choice today. We'll also suggest what settings to choose if you have older devices at home that don't support the latest standard.

Do you think incognito mode hides you from everyone on the internet? In reality, it works a bit differently. We explain what it actually does, when it's sensible to use it, who can still see your activity, and whether history can be traced in incognito mode.

AI can answer almost any question in just a few seconds. However, sometimes it confidently states information that is not true. Why does this happen and what are so-called AI hallucinations? In this article, we'll explain how large language models work, why they sometimes create false answers and how developers are gradually trying to mitigate this issue.

Behind every loaded video, photo, or webpage is a technology called CDN. It is used by streaming services, social networks, and regular websites, yet many people have never heard of it. In this article, we will explain what this abbreviation means, how it works, why internet content is stored in various locations around the world, and why today's internet can hardly do without it.

When talking about inheritance, most people think of a house, a car or money in the account. Yet we also leave behind thousands of photos, emails, social media accounts or data stored in the cloud. What happens to them after death, and who will gain access to them? This article looks at how digital legacy works, why the bereaved may have problems with data, and how to get organized in your online footprint today.

The idea that the internet flows mainly through the air is a myth. The entire technological world relies on heavy hardware buried in the sand of the seas. In the article, we will examine the technology of submarine cables. You will learn how optical fibers work, what laying them from ships entails, and how the depths of the oceans have become a geopolitical battlefield.

How much money leaves your account each month for online services? The recurring payment model often exhausts people because numerous small amounts gradually add up to unexpectedly high totals. The text relies on fresh data from 2026, reveals the vast difference between our estimates and reality, and offers four specific steps to help you better control your expenses.

Do you have a 'dead zone' on a floor or in a bedroom where Wi-Fi doesn't reach, and drilling into walls is not an option? Learn how to use the electrical wiring already in your walls to transmit internet over the electrical network. In this article, we'll show you how a modern powerline adapter works, why it can handle 4K streaming and gaming, and what to watch out for with older aluminum wiring.