Fun fact
In August 2011, Randall Munroe's webcomic xkcd published comic #936, “Password Strength,” and quietly rewired a decade of security advice. It compared “Tr0ub4dor&3” — a typically mangled password with about 28 bits of entropy, crackable in roughly 3 days at 1,000 guesses per second — with “correct horse battery staple”, four random words carrying about 44 bits, which would take some 550 years at the same speed. The punchline: the “hard” password is hard for humans to remember, while the word chain is easy to memorize and mathematically far stronger. The advice stuck. In 2017, NIST's Special Publication 800-63B officially dropped the old composition rules (mandatory symbols, frequent forced changes) in favor of long, memorable passphrases.
Tool usage guide
- Open the Password Generator on simpytool.com.
- Slide the length to 16+ characters — or pick the passphrase mode with 4–5 random words.
- Enable uppercase, digits and symbols if the site allows them.
- Check the strength meter; aim for “very strong” before copying.
- Copy the result into your password manager — never reuse it on another site.