Strong Passwords: The Complete Guide to Protecting Your Accounts
Strong Passwords: The Complete Guide to Protecting Your Accounts
Over 24 billion email/password pairs circulate from breaches. Most account takeovers aren't "genius hacks" โ they're reused weak passwords leaked from other sites.
How Passwords Actually Get Cracked
- Dictionary attacks: millions of common words tried in seconds
- Credential stuffing: your email tried against leaked passwords โ today's #1 cause
- Brute force: an 8-char lowercase password falls in hours
Anatomy of a Strong Password
Strength is measured in entropy (bits), not length alone:
| Type | Entropy | Crack time |
|---|---|---|
| 8 lowercase letters | ~37 bits | hours |
| 12 mixed characters | ~78 bits | millions of years |
| 16 mixed characters | ~104 bits | practically impossible |
| 20+ characters | 130+ bits | beyond any compute |
The Practical Steps
- Generate a random one with the Password Generator โ uses your browser's crypto API
- Set 20 characters with all types for sensitive accounts (email, bank)
- Store it in a password manager (Bitwarden, 1Password, Keychain)
- Enable 2FA everywhere possible โ a leaked password still leaves the account protected
Why a Password Manager?
Because the only alternative is reusing one password โ your biggest risk isn't cracking, it's reuse. A manager gives you:
- A unique strong password per site (the single biggest win)
- Autofill โ nothing to memorize
- Breach alerts for saved sites
Costly Habits to Drop
- โ Names or birthdays (guessed in seconds)
- โ Tiny tweaks when forced (already in attack lists)
- โ Sending passwords via WhatsApp or email
- โ Same password for work and personal
Bottom Line
Strong + unique per site + manager + 2FA = security that holds. Start by regenerating passwords for your 5 most important accounts today.