EasyPasswords - Tips and Strategies for Creating Secure Passwords

Creating a secure password is often treated as guesswork, a vague sense that longer and weirder must be better. But password strength is actually measurable, and understanding what the measurement means turns password creation from superstition into a skill. This article digs into the science of what makes a password hard to break, and gives you concrete strategies to create passwords that hold up against the tools attackers really use.

Want expert help putting this into practice? EasyPasswords can guide you through it.

Strength is really about guessing time

A password's strength boils down to one question: how long would it take an attacker to guess it? Security experts express this using the idea of entropy, which is a measure of how many possible passwords could have been produced by the method you used. The more possibilities, the longer an attacker must search, and the stronger the password.

Crucially, entropy depends on how the password was generated, not just how it looks. A password that appears random but was chosen by a human following a habit has far less entropy than it seems, because attackers model those habits. Genuine strength comes from choices made by a source of real randomness, spread across enough characters that the total number of possibilities becomes astronomically large.

Length is the biggest lever

Related: easypasswords - complete guide.

Of all the factors, length does the most work. Every character you add multiplies the number of possible combinations, so growing a password from 8 to 16 characters increases the search space by an enormous factor. This is why a long string of simple characters beats a short string of complex ones.

The practical takeaway is to treat length as your primary goal. Where a site allows it, aim for 16 characters at a minimum and reach for 20 or more on important accounts. Do not sacrifice length to satisfy a fiddly complexity rule; a longer password made of varied words or random characters is stronger than a short one crammed with symbols.

This principle also explains why occasional length limits imposed by websites are a genuine problem worth noticing. Some older systems cap passwords at a short maximum, which quietly weakens everyone's security by removing the most powerful lever available. When you encounter such a limit, use the full length allowed and lean harder on randomness to compensate. And if a site refuses to accept a long password at all, treat it as a small warning sign about how seriously that service takes security overall, and be especially sure not to reuse anything there.

Where the character mix actually helps

Mixing uppercase, lowercase, numbers, and symbols does increase strength, but only when the mix is random. The size of the character set you draw from raises the number of possibilities per character, so a random 16-character string using all four types is extremely strong. The failure comes when people add complexity in predictable places.

• Capitalising only the first letter adds almost nothing, because attackers try that first
• Putting the number and symbol at the end is another pattern the tools expect
• Substituting "@" for "a" or "3" for "e" is anticipated and offers little real gain
• Random placement of varied characters, generated by software, is what makes the mix count

In short, complexity helps only in proportion to how unpredictable it is. Randomly generated passwords get this for free; hand-made ones rarely do.

Two reliable creation strategies

See also: Easypasswords - Tips and Strategies for Secure Password Management.

There are two dependable ways to create high-entropy passwords, and each suits a different need. Choose based on whether you need to remember the password or not.

• Random character strings — the strongest option for any account you do not need to memorise; let a generator produce something like a 20-character mix and let your password manager store it
• Random-word passphrases — the best option for the few passwords you must remember, built from four or five randomly chosen words for high entropy and easy recall

Both draw their strength from randomness plus length. The difference is simply whether a machine holds the password for you or your memory does. For the vast majority of accounts, the random string is the right call because you never need to type it yourself.

Why generators beat human creativity

People are remarkably bad at being random. Asked to invent a password, we reach for words, dates, and patterns rooted in our lives and preferences, and those choices cluster in ways attackers can predict. This is not a failing of effort; it is how the human mind works. A random generator has no such bias, drawing each character or word independently from the full available pool.

This is why the single best password-creation strategy is to stop creating them yourself for routine accounts. A generator built into a password manager produces maximum entropy instantly, avoids every predictable pattern, and stores the result so you never have to recall it. Your creativity is better spent on the two or three passphrases you must memorise, where a human-friendly structure genuinely helps.

Common creation mistakes to avoid

Even with the right strategy, a few recurring mistakes quietly weaken passwords. Watch for these as you build your credentials:

• Basing a password on any personal information, since names, pets, and dates are often discoverable
• Reusing a strong password across sites, which erases its strength the moment any one site is breached
• Choosing a well-known phrase, lyric, or quote for a passphrase, all of which appear in attackers' word lists
• Meeting a minimum length exactly rather than exceeding it, leaving strength on the table
• Trusting that complexity rules alone make a password safe, when length and randomness matter far more

Avoiding these keeps the entropy you worked to build from leaking away through a predictable choice.

Creating secure passwords is not about cleverness; it is about maximising unpredictability and length, and recognising that a machine does both better than we can. Reserve your own effort for the handful of memorable passphrases you truly need, and let randomness handle the rest. A tool like EasyPasswords puts a strong generator and a secure vault in one place, so every password you create is high-entropy by default and stored safely the moment it exists.