Egyesek a komplex (kis-nagybetűt, számot, speciális karaktereket stb. tartalmazó), de viszonylag rövidebb jelszavak, míg mások - pl. az FBI - a könnyen megjegyezhető, de hosszabb, értelmes szavakból összefűzött jelmondatok mellett érvel:
For more than a decade now, security experts have had discussions about what's the best way of choosing passwords for online accounts. There's one camp that argues for password complexity by adding numbers, uppercase letters, and special characters, and then there's the other camp, arguing for password length by making passwords longer. This week, in its weekly tech advice column known as Tech Tuesday, the FBI Portland office leaned on the side of longer passwords. "Instead of using a short, complex password that is hard to remember, consider using a longer passphrase," the FBI said. "This involves combining multiple words into a long string of at least 15 characters," it added. "The extra length of a passphrase makes it harder to crack while also making it easier for you to remember."