HOW CAN YOU MAKE YOUR PASSWORD UNBREAKABLE ?

Space search Calculator:

yes it is https://www.grc.com/haystack.htm

So what it does ?

This calculator is designed to help users understand how many passwords can be created from different combinations of character sets (lowercase only, mixed case, with or without digits and special characters, etc.) and password lengths.

The calculator then puts the resulting large numbers (with lots of digits or large powers of ten) into a real world context of the time that would be required (assuming differing search speeds) to exhaustively search every password up through that length, assuming the use of the chosen alphabet.

On this page you’ll find:

Password Related Links

• A Large-Scale Study of Web Password Habits ‑ THOROUGH & interesting 9-page Microsoft Research PDF.


• Analysis of the passwords SONY lost ‑ in one of their 2011 network breaches.


• The password cracking power of GPU’s ‑ the need to recalibrate our password length thinking.


• A homebrew password cracking system ‑ that cracks at 33.1 billion passwords per second!


• An analysis from a major site breach of the passwords users had chosen. VERY interesting!


• Top 10 Most Common Passwords ‑ Another interesting snapshot of typical users.


• The Top 500 Worst Passwords of All Time ‑ (Profanity Warning) ‑ A list that wasn’t edited.


• Why Steve Gibson’s Password Padding Works for Humans ‑ An interesting post about cognitive science.

and much more information that  you can’t believe yourself .
It is Gibson Research corporation[US].
Good luck ;)