The most common passwords in 2026 are still "123456," "password," and first names. These crack in under a second. Here is what actually makes a password strong.
What Makes a Password Strong?
Three properties matter: length, randomness, and uniqueness.
- Length — Each extra character multiplies difficulty exponentially. 16 characters is the recommended minimum.
- Randomness — Names, dates, and keyboard walks are in every cracker dictionary. Machine-generated randomness is essential.
- Uniqueness — Reusing passwords means one breach exposes every account that shares it.
Password Entropy and Crack Times
- 8 chars, lowercase only: ~38 bits — crackable in hours
- 12 chars, mixed case + numbers: ~72 bits — years to crack
- 16 chars, full character set: ~105 bits — centuries to crack
- 20 chars, full character set: ~131 bits — longer than the age of the universe
How Passwords Are Cracked
- Dictionary attacks — Billions of known passwords tested in seconds.
- Brute force — Modern GPUs test billions of combinations per second.
- Credential stuffing — Leaked passwords from one breach used on other sites.
Generate a Strong Password Now
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Use a Password Manager
Use Bitwarden (free, open-source), 1Password, or KeePass. Generate one strong master password and remember only that.
