What Is Password Entropy? How Password Strength Is Really Measured
Entropy is the real math behind password strength, measured in bits. Here is what it means, how to think about it, and why it explains why long beats complex.
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What Is a Salt in Cryptography? Why Hashed Passwords Need It
A salt is a pinch of randomness added to each password before hashing, and it defeats an entire class of attacks. Here is what it does and why every stored password should have one.
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What Is HTTPS and TLS? The Padlock in Your Address Bar Explained
That padlock icon represents HTTPS, powered by TLS, encrypting your connection to a website. Here is what it actually protects, what it doesn't, and why the padlock alone isn't a safety guarantee.
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What Is a VPN? An Honest Guide to What It Does and Doesn't Do
VPN ads promise total anonymity and hacker-proof security. The reality is narrower and more useful. Here is what a VPN actually does, honestly, without the marketing.
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What Is Social Engineering? The Art of Hacking People
Social engineering skips the technology and hacks the human instead. Here is how manipulators trick people into handing over access, the common tactics, and how to build resistance.
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How to Enable Two-Factor Authentication on Instagram
Instagram hackers target creators, shops, and everyday users alike. Learn how to switch on Instagram 2FA with an authenticator app and lock hijackers out for good.
Read more →How to Enable Two-Factor Authentication on Facebook (Full Guide)
Facebook accounts get hijacked every day, and recovery is painful. Here is exactly how to turn on Facebook 2FA, pick the safest method, and save recovery codes before you need them.
Read more →How to Enable 2FA on Your Gmail and Google Account (Step by Step)
Your Google account is the master key to your digital life. Learn how to turn on 2-Step Verification for Gmail, choose the safest method, and avoid getting locked out.
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TOTP vs HOTP: What's the Difference and Which Should You Use?
Both TOTP and HOTP generate one-time passwords, but they use different mechanisms. Learn the technical differences and why TOTP became the dominant standard for 2FA apps.
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