Cybersecurity

Plain-English security articles — passwords, hashing, breaches and staying safe online.

Security dashboard detecting leaked credentials in a breach database with protection shield active — safe password leak checking

2026-07-04

How to Check if Your Password Has Been Leaked (Without Risking It)

Yes, you can safely check a password against 900+ million leaked ones — thanks to k-anonymity, the password never leaves your device. Here's how it works and what to do if you're hit.

Cyberpunk browser interface with shield and secure local data loop — no server uploads

2026-07-01

Why Browser-Based Tools Are Safer Than Upload-Based Ones

When an online tool processes your data locally in the browser instead of uploading it to a server, your sensitive data never leaves your device. Here's why that matters.

Side-by-side comparison of MD5 marked broken with warning symbol versus SHA-256 marked secure with shield — hash algorithm security comparison

2026-07-01

MD5 vs SHA-256: Which Hash Function Should You Use in 2026?

Use SHA-256 for anything security-related; MD5 only for non-security checksums. Here's why MD5 broke, what collisions mean, and a decision table you can trust.

Entropy formula E = N x log2(R) on screen showing 16 characters from a 94-symbol set equals 104.8 bits — the math behind password strength

2026-06-27

How Strong Is Your Password? The Math Behind Password Strength

Password strength is measured in entropy bits — and length beats complexity every time. See the real cracking-time math, why Tr0ub4dor&3 fails, and what 16 random characters buys you.