A strong password is the first barrier between your digital life and attackers. Yet most real passwords are short, predictable or reused. Here is the practical guide to creating and managing truly secure passwords.
The golden rule: length > complexity
For years people were told to “mix uppercase, numbers and symbols”. Current research shows that length is the deciding factor:
- 8 characters (lowercase only): ~38 bits of entropy → crackable in hours
- 12 characters (mixed): ~72 bits → days/weeks
- 16+ characters (mixed): >100 bits → infeasible by brute force
Minimum recommended: 16 characters. If you can use 20–24, even better.
Method 1: Random word passphrase (Diceware)
Combine 4–5 completely random dictionary words, separated by dashes or spaces:
correct-horse-battery-staple-dove
With 5 words from a list of 7,776 (6 dice of 6 sides): 64 bits of entropy. Longer = more secure.
Advantage: easy to remember and type. Drawback: only works if the site accepts long phrases without a length limit.
Method 2: Full random string
Use a cryptographically secure generator (like ours) that includes:
- Uppercase (A–Z)
- Lowercase (a–z)
- Numbers (0–9)
- Symbols (!@#$%^&*)
A 16-character string with the full set (94 symbols) → ~105 bits of entropy.
What you should NOT do
| ❌ Avoid | Why |
|---|---|
123456, password, qwerty |
In the most used breach lists |
| Your name, date, pet | Social engineering and OSINT |
P@ssw0rd123 |
Predictable patterns (leet speak) |
| The same password on multiple sites | One breach exposes everything |
The real problem: reuse
Even if your password is perfect, if you reuse it and a site suffers a breach, all your accounts are at risk.
The solution: a password manager (Bitwarden, 1Password, KeePass, etc.). It generates, stores and autofills unique passwords for each service. You only remember one master password (strong and long).
Two-factor authentication (2FA)
Even the best password can leak (phishing, keylogger, breach). 2FA adds a second proof:
- TOTP apps (Google Authenticator, Authy, Bitwarden): a 6-digit code that changes every 30 s. Recommended.
- Hardware keys (YubiKey): physical, phishing-immune.
- SMS/email: better than nothing, but vulnerable to SIM-swapping.
Enable it on email, banking, social networks and your password manager.
Our practical recommendation
- Start using a password manager today.
- Generate 16–24 random characters for each account.
- Enable 2FA (TOTP) on everything important.
- Store your master password and 2FA recovery codes somewhere safe (paper, safe).
Secure password generator
Our password generator creates keys locally in your browser using the Web Crypto API: nothing leaves your device, there is no server that could see them. Choose length and character types and get a strong password instantly.
Conclusion
Your account security depends on three habits: length, uniqueness and 2FA. The password manager does the heavy lifting; you just choose a good master password and enable the second factor. Start today: a breach takes seconds, prevention takes minutes.