The tool automatically calculates password entropy. Password entropy indicates how easy it is for a password cracking software to guess a password. The more passwords the software has to try before guessing the password the higher the entropy is. The calculation is an assessment of how difficult it is to crack the password with methods commonly used by hackers. These include brute force cracking and dictionary attacks. Based on the mathematical result, the tool defines password strength as weak, medium, strong, or super strong. The stronger the password is, the longer it takes for hackers to get the right result using programs that test even millions of alternatives in a second. Theoretically, it’s possible to crack any password. However, with a strong enough password it could still take millions of years.