How to Create Strong Passwords That Are Actually Hard to Crack

Why Most Passwords Get Cracked in Minutes

Here is something most people do not want to hear: if your password is a word from the dictionary — even with a number at the end — hackers can crack it in under a minute. Not because they are sitting there guessing one by one. They use automated tools that run through billions of combinations per second.

Password cracking falls into a few common methods. Dictionary attacks try every real word plus common variations. Brute-force attacks try every possible character combination up to a certain length. Credential stuffing attacks use passwords leaked from other websites — and since people reuse passwords, it works more often than you would think.

The math is brutal. A 6-character lowercase password has about 300 million possible combinations. Modern hardware can crack that in under a second. A 12-character password using mixed characters, numbers and symbols? That is 475 quadrillion combinations. Even the fastest supercomputer would take thousands of years.

What Actually Makes a Password Strong

Length matters more than anything else. Every extra character multiplies the difficulty exponentially, not just additively. A 16-character password is not just twice as hard to crack as an 8-character one — it is astronomically harder.

Beyond length, the character set matters. Using only lowercase letters gives you 26 options per position. Add uppercase and you get 52. Add numbers for 62. Add symbols and you jump to 94 or more. More options per position combined with more positions means the attacker has to try vastly more combinations.

Here is what a good password actually looks like: random, long, and never reused. Something like mK9#vL2@pQx7!nRt — 16 characters, mixed everything. Yes, it looks impossible to remember. That is fine. That is what password managers are for.

The Three Rules That Actually Protect You

Rule 1 — Never reuse passwords. When a website gets breached (and they do, constantly), attackers get your password for that site. If you used the same password on your bank account, email, or social media, you are now compromised on all of them. Every account needs its own unique password.

Rule 2 — Make them at least 14 characters. 12 is the old minimum. With modern computing power, push it to 14 or 16. Longer is always better.

Rule 3 — Use a password manager. Tools like Bitwarden, 1Password, or even your browser's built-in manager store your passwords encrypted. You only need to remember one master password. The manager generates and fills in random strong passwords for everything else.

Common Password Mistakes

Substituting letters for numbers does not help as much as you think. Replacing 'a' with '@' or 'i' with '1' is a known technique and modern crackers account for it. p@ssw0rd is not a strong password. It falls in under a second.

Adding your birth year, pet's name, or favourite sports team makes the password personal — and personal information is easier to guess, especially with social engineering. Attackers often research targets before trying to crack accounts.

Using the same base password with slight variations per site is also dangerous. MySitePassword1, MySitePassword2, MySitePassword3 — once an attacker knows the pattern, they will try variations on every site.

How to Generate Strong Passwords Right Now

The fastest way is to use a dedicated password generator. Our free Password Generator tool creates cryptographically random passwords with one click. You can set the length (we recommend 16+), choose which character types to include, and copy the result directly.

The randomness is the key part. Human brains are terrible at generating truly random sequences. We have patterns we do not even know about. A computer-generated password has no pattern, no bias, and no personal connection — making it as strong as it can possibly be.

Generate one now and drop it into your password manager. It takes about 30 seconds and dramatically improves your security.