How to create strong passwords in 2026: complete guide
Why your password is still the weakest link
In 2026, more than 80% of security breaches still start with a weak or reused credential. Creating strong passwords is no longer optional: it's the first line of defense for your personal and company accounts.
The 5 rules of a strong password
- At least 16 characters. The longer it is, the more entropy and the more time an attacker needs to crack it.
- Mix uppercase, lowercase, numbers and symbols. Each character set multiplies the possible combinations.
- No dictionary words or personal data (name, birthday, favorite team).
- Unique per service. Reusing a password turns one breach into dozens.
- Randomly generated. Our brain is predictable; a cryptographic generator is not.
Entropy: the metric that really matters
Entropy measures how unpredictable a password is. Below 60 bits it's weak, 80–100 is strong, and above 100 bits it's practically unbreakable with current technology. Test yours with our free strength checker.
Create a great password in 10 seconds
Use our password generator: pick 20 characters, enable all sets, and copy it straight to your manager. Zero effort, maximum security.
Mistake #1: trying to remember them all
The average person has 100+ online accounts. Memorizing unique long passwords for all of them is impossible, so people end up reusing. The solution isn't to remember them: it's to delegate them to an encrypted manager like Lock Down Keys, where you only need to remember one master key.
Conclusion
Long, random, and unique: those are the three rules to internalize. And to keep your sanity, let an AES‑256‑GCM encrypted manager handle the rest.