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Zero-trust cloud security explained
Traditional corporate networks were built like castles: secure walls, such as firewalls and virtual private networks (VPNs), kept threats out, and anyone inside was trusted. This castle-and-moat appro...
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What is the Caesar cipher? Definition, history, and examples
Over 2,000 years ago, Julius Caesar had his own way of keeping sensitive messages out of enemy hands. This ancient code, known as the Caesar cipher or Caesar encryption, is one of the earliest known e...
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What is a QR code?
You’ve probably seen these scannable symbols everywhere: restaurant menus, event tickets, or flight boarding passes. With just a quick scan using your phone’s camera, you can open a website, pick ...
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What is a password manager and why should you use one
Most of us have way more online accounts than we can keep track of. And sure, we all know we should be using strong, unique passwords for every single one, but let’s be honest, almost nobody actuall...
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Privacy vs. anonymity: Definitions, differences, and why it matters
Have you ever heard people use “privacy” and “anonymity” like they mean the same thing? They don’t. Privacy is about keeping your personal life to yourself, while anonymity is about hiding w...
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What is lattice-based cryptography, and why does it matter in the post-quantum era?
It’s easy to forget how much our lives depend on encryption. Every time you log into your bank account, send a message, or save a password, there’s some heavy-duty math working quietly in the back...
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What is post-quantum cryptography?
Quantum computers might still feel like something out of sci‑fi, but they’re improving fast, and one day, they could break the encryption schemes we rely on to keep the internet secure. That’s w...
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What is email tracking? How it works and how to stop it
Every day, billions of emails get opened, clicked, and quickly forgotten. But many of them come with invisible tools that quietly tell the sender when you opened the email, where you were, what device...
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How to disable end-to-end encryption in WhatsApp
WhatsApp’s end-to-end encryption (E2EE) is there to keep your chats private, so only you and the person you're messaging can read them. But there might be times when you want to change those setting...
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What is browser fingerprinting? 7 ways to stop it (2025 guide)
Just as we leave physical fingerprints on the surfaces we touch, we also leave digital fingerprints on the websites we visit. This online fingerprinting can quietly track you across the web, without t...
