What Is a Man-in-the-Middle Attack? Simple Explanation
A man-in-the-middle attack means someone secretly sits between you and who you think you're talking to, reading or altering everything. Here is how it works and how to stop it.
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In-depth guides, tips, and tutorials on two-factor authentication and online security.
Security
What Is End-to-End Encryption? Plain English Explanation
End-to-end encryption means only you and the person you're talking to can read your messages. Not the app, not the company, not anyone in between. Here is how it works and where it matters.
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Why Security Questions Are Weak (And What to Do Instead)
Your mother's maiden name is not a secret, and your first pet is on Facebook. Here is why security questions are one of the weakest links in account security, and how to neutralise them.
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What Is a Recovery Email? Why It's the Master Key to Everything
A recovery email is the address services use to get you back into a locked account. It is also the single most powerful account you own, and the one attackers want most.
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What Is an otpauth URI? The Text Behind Every 2FA QR Code
Every 2FA QR code hides an otpauth:// link. Here is what each part of it means, how to read one, and why understanding it makes you better at managing and backing up your 2FA.
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What Is a One-Time Password (OTP)? Plain English Definition
An OTP is a password that works exactly once. Here is what that means, the difference between the SMS, TOTP, and HOTP kinds, and why one-time is so much safer than reusable.
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Zero Trust Security Explained: Never Trust, Always Verify
Zero trust replaces the castle and moat model with a simple rule: verify every request, every time, from everyone. Here is what it means in practice, for companies and for your own accounts.
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OAuth and SSO Explained: What Really Happens When You "Sign In With Google"
One click and you're logged in, but what did you just authorize? A plain language tour of OAuth and single sign on, their real security trade-offs, and how to audit your connected apps.
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Biometric Authentication: How Fingerprints and Face Unlock Really Work
Your fingerprint never leaves your phone, and your face is stored as math, not a photo. Here is how biometric authentication works, where it shines, and where it should never stand alone.
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