In 2026, the average person has over 100 online accounts. Most people manage this with a handful of reused passwords and a few variations of them — a strategy that works fine until it doesn't. A single data breach at any one of those services can expose the password you've used everywhere, and automated tools can test billions of combinations per second. The gap between a bad password and a good one has never been wider.
Here is what actually makes a password secure, and how to generate passwords you can trust.
What makes a password strong?
Password strength comes down to two things: length and unpredictability.
Length is the most important factor. Every additional character multiplies the number of possible combinations exponentially. A 12-character password from a 95-character set (letters, numbers, symbols) has roughly 5.4 × 10²³ possible combinations. A 16-character password from the same set has 4.4 × 10³¹. Going from 12 to 16 characters makes it about 81 million times harder to crack by brute force.
Unpredictability means the password should not follow any pattern a human or algorithm could predict — no dictionary words, no keyboard walks (qwerty, 123456), no personal information, no common substitutions (p@ssw0rd is not secure).
Our free Password Generator creates cryptographically random passwords in your browser — the randomness comes from your device's secure random number generator, not a server, and the password is never transmitted anywhere.
Common password mistakes in 2026
Even security-conscious people make these mistakes:
Reusing passwords. If your password for a small forum gets breached, attackers will try it on your email, bank, and social media accounts within hours. This is called credential stuffing, and it's fully automated.
Slight variations. Changing MyPassword1 to MyPassword2 does not help. Attackers use rule-based attacks that try every common variation of breached passwords first.
Short passwords with complexity requirements. P@ss1! satisfies most complexity rules but is weaker than correcthorsebatterystaple because it's shorter. Complexity rules are a legacy from an era when password length limits were very low.
Storing passwords in plain text. A notes app, a spreadsheet, or a sticky note are not secure storage. If your device is compromised, every password is compromised.
How long should a password be?
The current recommendations from NIST (the US National Institute of Standards and Technology) are:
- Minimum 12 characters for personal accounts
- 16+ characters for accounts that matter (email, banking, anything that can reset other accounts)
- 20+ characters for privileged or administrator accounts
Length is more important than character variety. A random 16-character lowercase password is harder to crack than a 10-character password with uppercase, numbers, and symbols.
What about passphrases?
A passphrase is a password made of multiple random words — like hammer-cloud-river-desk. Four common English words gives you about 47 bits of entropy if chosen randomly, which equals roughly a 9-character fully random password.
Passphrases are easy to type and memorable, which makes them good for things you have to type frequently (like your computer login or password manager master password). For everything else, a randomly generated string is more secure per character.
The one tool that makes all of this practical: a password manager
The reason most people reuse passwords is that they can't remember 100 unique ones. The solution is a password manager — software that generates, stores, and auto-fills passwords for you. You remember one strong master password; the manager handles everything else.
Well-regarded options in 2026 include Bitwarden (open source, free tier available), 1Password, and Dashlane. All of them have browser extensions that auto-fill credentials and flag reused or weak passwords.
The workflow is simple:
- Generate a unique 20-character random password using our Password Generator.
- Paste it into the password manager when creating or updating an account.
- Never type or remember the password — the manager does it.
Enable two-factor authentication
A strong password is the first line of defense. Two-factor authentication (2FA) is the second. With 2FA enabled, an attacker who obtains your password still can't log in without the second factor — usually a time-based code from an app like Authy or Google Authenticator.
Enable 2FA on every account that supports it, starting with your email (because email is used to reset every other account) and your password manager.
What to do if your password has been breached
Check your email at haveibeenpwned.com — it's a free service that tells you which known data breaches your email address has appeared in. If any of your accounts show up, change those passwords immediately and check whether you've used the same password elsewhere.
Generate new, unique passwords with our free Password Generator and update any reused passwords as a priority. You can do it a few accounts at a time — start with the ones that matter most.