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This is why you hear security professionals suggest all the time to choose a long and complex password that consists of a combination of different character types. For example, a nine-character password comprising a mix of upper- and lowercase letters along with digits and special characters will take over nine years to be guessed by a computer, making it virtually uncrackable. The process can be effective but excruciatingly slow. On a successful match, user is notified of the correct password. The tool then guesses every combination of password possible within this range and specified by the criteria.
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It takes a bit of guesswork and expertise to find the ideal brute-forcing configuration.
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USE JOHN THE RIPPER KALI PRO
The Pro version, designed for use by professional pen testers, has additional features such as bigger, multilingual wordlists, performance optimizations and 64-bit architecture support. An enhanced “jumbo” community release has also been made available on the open-source GitHub repo. The tool comes in both GNU-licensed and proprietary (Pro) versions. It was designed to test password strength, brute-force encrypted (hashed) passwords, and crack passwords via dictionary attacks. First released in 1996, John the Ripper (JtR) is a password cracking tool originally produced for UNIX-based systems.