Cybersecurity

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

Glowing globe with network nodes and the private IP address 192.168.42.107 on a dark terminal dashboard — what your IP address reveals about your location and provider

2026-07-14

What Does My IP Address Reveal About Me? (Less — and More — Than You Think)

Your IP address reveals your rough location (city level), your internet provider and your connection type — but not your name, exact address or browsing history. Here's exactly what websites can see.

Glowing padlock built from random password characters beside the passphrase SYNERGY-QUANTUM-NEON-VORTEX-ACCESS on a retro terminal — how to create a strong password

2026-07-11

How to Create a Strong Password You Can Actually Remember

The two proven ways to make a strong password: a truly random generated password stored in a manager, or a 4-5 word passphrase for the few passwords you must memorise. Here's exactly how to do both.

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.