Length beats complexity

Start with the single most useful fact, because it flips the usual advice on its head. A long, simple password is stronger than a short, complicated one.

Here’s why. When someone tries to crack a password, they’re not sitting there typing guesses. They’re running a program that tries billions of combinations. What slows that program down is the sheer number of possibilities it has to chew through, and length adds possibilities far faster than fancy characters do. A short password dressed up with symbols, like P@ssw0rd1!, looks clever to a human and is nearly worthless against a cracker, because the substitutions (@ for a, 0 for o) are the first things its program tries. It’s a common word wearing a thin disguise.

Now compare four random everyday words strung together: correct-horse-battery-staple. It’s long, it’s easy to picture, you can remember it after seeing it twice, and it would take a cracking program an absurd amount of time to reach. This idea comes from a well-known xkcd comic (a popular webcomic), and it has held up: four random words beat a short jumble of symbols, on both security and your sanity. The trick is that the words have to be random, picked by chance, not “my dog’s name and my birthday.” A memorable sentence only you would assemble works the same way.

So if you’re choosing a password by hand, that’s the recipe: a handful of random words, long, that you can actually remember. Skip the tortured symbol soup. It was never the thing protecting you.

But the real answer is: stop choosing them by hand

Here’s the part that quietly solves the whole problem. The strongest single thing you can do isn’t a better password. It’s to stop memorizing passwords at all and let a password manager do it.

A password manager is an app (a kind of secure vault) that generates a different long, random password for every account you have and remembers all of them for you. You memorize exactly one strong password, the one that unlocks the vault, and that’s the last one you’ll ever have to keep in your head. The app fills in the rest when you need them.

This fixes the thing that actually gets most people hacked, which isn’t a weak password. It’s a reused one. Almost everybody uses the same two or three passwords across dozens of sites, because no human can remember sixty different ones. The problem is that companies get breached all the time, and when one site leaks its passwords, attackers immediately try that same email and password on your bank, your email, your everything. One leak becomes ten break-ins. A password manager ends that, because every account gets its own unique password and a leak at one place can’t unlock another.

There are good, well-regarded password managers, some free, some a few dollars a month, and at least one solid open-source option you can even host yourself if you want to. Any reputable one beats what you’re doing now if you’re keeping passwords in your head or a notebook. This is the rare bit of security advice that makes your daily life easier, not harder.

The other half: turn on two-factor

Even a perfect password can be stolen, by a convincing fake login page, by malicious software, by a breach. So pair it with the second lock that makes a stolen password nearly useless on its own: two-factor authentication, usually shortened to 2FA (a second step at login, on top of your password, that proves it’s really you).

The familiar version is the six-digit code you get when you log in. The far better version is an authenticator app (a free app on your phone that generates those codes itself) or a small physical security key (a device the size of a USB stick that you tap to confirm it’s you). Both are stronger than codes sent by text message, because text messages can be intercepted or redirected. Turn 2FA on for the accounts that matter most first: your email, your bank, and anything tied to your business. Your email especially, because whoever controls your email can reset the password on everything else.

What you can stop doing

A few rules you were probably taught that you can let go of:

• Forced regular changes. Being made to change your password every few months mostly leads to weaker, predictable passwords (Spring2026!, then Summer2026!). Change a password when there’s a reason to, like a breach, not on a calendar.
• The symbol-and-number ritual. If your password is long and unique, you don’t need to torture it with required punctuation. Length and uniqueness are what matter.
• Memorizing anything but one. With a password manager, your job is one strong master password and nothing else. Stop carrying the rest in your head.

The honest summary

If you do nothing else, do these three: use long passwords made of random words instead of short clever ones, use a password manager so every account gets a different one and you never reuse, and turn on two-factor for your email, your money, and your business. That combination defends against the way people actually get hacked, which is reuse and leaks, not movie-style guessing. It’s less effort than what most people do today, and far safer. The strongest password isn’t the one with the most symbols. It’s a long one you didn’t have to remember.