How to Create Strong Passwords (and Actually Remember Them)
Most people know they should use strong passwords. Most people also reuse the same password across dozens of sites. These two facts together explain why credential stuffing attacks — where attackers take a leaked username and password from one breach and try it on every other site — are so effective.
What Makes a Password Strong?
Length matters more than complexity. A 16-character password made of random words is harder to crack than an 8-character password with symbols. The math is straightforward: every additional character multiplies the number of possible combinations an attacker has to try.
A strong password is at least 14 characters long, does not appear in any dictionary or known password list, is not based on personal information (birthdays, names, addresses), and is unique — not reused anywhere else.
The Passphrase Approach
Four or five random words strung together — sometimes called a passphrase — are both strong and memorable. "correct horse battery staple" is a classic example. The words are random (not a phrase you would naturally say), which is what makes it strong. The fact that it is words rather than random characters is what makes it memorable.
Use a Password Manager
The honest answer to the "how do I remember them" question is: you do not. You use a password manager. A password manager generates and stores unique, random passwords for every site. You only need to remember one strong master password.
Reputable password managers include Bitwarden (free, open source), 1Password, and Dashlane. Your browser has a built-in password manager too, though dedicated tools offer more features and cross-device sync.
Enable Two-Factor Authentication
Even a strong, unique password can be stolen through phishing or a data breach. Two-factor authentication (2FA) adds a second layer: even if an attacker has your password, they also need access to your phone or authenticator app. Enable 2FA on every account that supports it, especially email, banking, and any account tied to payment information.
Check If Your Passwords Have Been Leaked
Have I Been Pwned (haveibeenpwned.com) lets you check whether your email address has appeared in a known data breach. If it has, change the password for that account immediately — and any other account where you used the same password.
The Bottom Line
Use a password manager. Generate unique passwords for every site. Enable 2FA everywhere you can. These three steps eliminate the vast majority of account takeover risk.
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