The security debate has shifted. For decades we were told to make passwords "complex" โ add a capital letter, throw in a symbol, swap an O for a zero. But that advice is outdated, and security experts have largely moved on. The real question now is: should you use a random password or a passphrase?
A passphrase is a sequence of random words strung together โ sometimes with a separator and a number. A random password is a short string of mixed characters with no meaning. Both can be strong, but they have different tradeoffs.
It depends on length. A 4-word passphrase drawn randomly from a 7,776-word list (the Diceware standard) has about 51 bits of entropy. A random 10-character password using all character types has about 65 bits. But a 5-word passphrase jumps to 64 bits, and a 6-word one hits 77 bits โ more than most random passwords.
The takeaway: a properly generated passphrase of 4+ words is just as strong as most random passwords, and far more usable.
Security experts recommend a hybrid approach:
Whether you choose passwords or passphrases, the most important rule is this: use a different one for every account. A leaked password from one site should never open another. This single habit prevents the majority of account takeovers.
Our free tool generates cryptographically random passphrases in seconds โ easy to remember, hard to crack.
Open Passphrase Generator โ๐ Read next: How Long Does It Take to Crack a Password? | Best Password Managers of 2025