Rainbow tables are useful since security-oriented applications seldom have passwords stored in plaintext and instead store their fixed-length hashes. Rainbow tables: In this case, a pre-computed list of password hashes is compared against an existing data dump to find the correct password in its plaintext form.That is why this example of a password is considered a strong password. For example, a nine-character password comprising of a mix of upper and lower case letters along with digits and special characters will take over nine years to be guessed using a brute-force attack method, making the password close to uncrackable. The process can be effective, but also extremely slow. Brute-force attack: This kind of attack happens when a tool guesses every combination of passwords possible within a range and criteria specified by the user.The tool enters every single password from that list in an attempt to find the correct one. Dictionary attack: Passwords provided in a list with a large number of words, phrases, and possible passwords derived from previously leaked data dumps or breaches correspond to this kind of attack.How Do Password Crackers Work?Įffective password cracker tools typically work in three different ways: The best password cracker tools can handle multiple targets simultaneously, are usable on multiple platforms, and support multiple protocols. In addition to helping recover lost passwords, many system administrators use password cracking tools to check for easily hackable passwords to prevent vulnerabilities. Password cracking is the technique of retrieving passwords from encrypted data stored in or communicated by a computer. System administrators can practice creating stronger passwords by using password cracker tools to test these passwords. This is why having a strong password is such an important aspect of computer security. For system administrators, there can be no settlement for weak passwords as unauthorized access can potentially lead to catastrophic consequences such as loss of valuable data. This is why one of the most common ways that hackers can break into computers and their accounts is by guessing their passwords. This perhaps explains why the five most common passwords around the world, according to OWASP’s SecLists project, are weak passwords such as ‘123456’, ‘Password’, ‘12345678’, ‘qwerty’, and ‘123456789’. In a study done by Google in 2019, 75 percent of Americans were said to get frustrated trying to keep track of their passwords. Users feel that they can get away with leaving a weak password oftentimes because they have trouble keeping track of them. A weak password can be as simple as having a password equal to a username, a blank password, or combination passwords such as ‘qwerty’.
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