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A password cracker is a software tool that can recover or guess passwords from data that has been stored or transmitted by a computer system.
Password crackers use different techniques, such as brute force, dictionary, rainbow table, or cryptanalysis, to try to find the original password from its scrambled form.
Password crackers can be used for various purposes, such as recovering forgotten passwords, testing the strength of passwords, finding security vulnerabilities, or hacking into other accounts.
iMobie AnyUnlock: iMobie AnyUnlock is a commercial software that can remove various types of locks from iPhone, iPad, and iPod devices, such as Apple ID, screen passcode, MDM lock, iCloud activation lock, iTunes backup password, and SIM lock. It also supports data recovery and erasure
Password Cracker: Password Cracker is a freeware that can reveal hidden passwords in asterisks or dots in Windows applications and web browsers. It can also generate and save passwords for different accounts
Brutus Password Cracker: Brutus Password Cracker is a free software that can perform brute-force and dictionary attacks on remote servers and services, such as HTTP, FTP, POP3, Telnet, and more. It runs on Windows and has a graphical user interface
AirCrack: AirCrack is an open source suite of tools that can assess and crack WiFi network security. It can capture and analyze network traffic, perform replay and deauthentication attacks, and crack WEP and WPA/WPA2 passwords. It runs on various operating systems, such as Linux, Windows, macOS, and others
RainbowCrack: RainbowCrack is an open source software that can crack hashes using a time-memory trade-off technique. It can generate, sort, merge, convert, and lookup rainbow tables for various hash algorithms, such as LM, NTLM, MD5, SHA1, SHA256, and more. It also supports GPU acceleration with AMD and NVIDIA cards. It runs on Windows and Linux
Cain & Abel: Cain and Abel is a free software that can recover passwords from various sources, such as network sniffing, cracking encrypted passwords, recording VoIP conversations, decoding scrambled passwords, revealing cached passwords, and analyzing routing protocols. It runs on Windows and has a graphical user interface
Medusa: Medusa is a free software that can perform parallelized login brute-forcing and dictionary attacks against a large number of network services, such as FTP, HTTP, IMAP, MS-SQL, MySQL, POP3, SMB, SSH, Telnet, and more. It runs on Linux and has a command-line interface
John The Ripper: John the Ripper is a free and open source software that can test password strength and crack passwords using various methods, such as wordlist, single crack, incremental, and external modes. It supports hundreds of hash and cipher types, such as user passwords, network traffic captures, encrypted private keys, filesystems and disks, archives, document files, and more. It runs on various operating systems, such as Linux, Windows, macOS, and others
HashCat: hashcat is the world's fastest and most advanced password recovery utility, supporting five unique modes of attack for over 300 highly-optimized hashing algorithms. hashcat currently supports CPUs, GPUs, and other hardware accelerators on Linux, Windows, and macOS, and has facilities to help enable distributed password cracking.
Hydra: Hydra is a fast and flexible network login cracker that supports various protocols such as FTP, HTTP, SSH, Telnet, and more. It can perform brute force attacks, dictionary attacks, and other methods to guess passwords from remote servers or services. Hydra is written in C and runs on Linux, Windows, and other platforms
Ophcrack: Ophcrack is a free and open-source Windows password cracker based on rainbow tables. It can recover passwords from hashes or from live systems using a bootable CD or USB. Ophcrack is very efficient and easy to use, as it has a graphical user interface and can automatically detect the encryption type. Ophcrack is written in C and runs on Windows, Linux, and Mac OS X
L0phtCrack: L0phtCrack is a password auditing and recovery tool that can crack Windows passwords from hashes, files, or live systems. It can also perform various tests to measure the strength and security of passwords, such as dictionary attacks, brute force attacks, hybrid attacks, and rainbow table attacks. L0phtCrack has a user-friendly interface and can generate reports and graphs to help users improve their password policies. L0phtCrack is written in C# and runs on Windows
Ncrack: Ncrack is a network authentication cracking tool that can help you test the security of your passwords on various protocols and services. It can perform brute force, dictionary, and other attacks to guess passwords from remote servers or devices. It has a modular design, a command-line interface similar to Nmap, and a dynamic engine that can adapt to network feedback. It can crack passwords for protocols such as RDP, SSH, HTTP, SMB, POP3, VNC, FTP, and more.
CrackStation: CrackStation is a free online service that can crack password hashes using massive pre-computed lookup tables. It can recover passwords from various hashing algorithms, such as MD5, SHA1, SHA2, NTLM, and more. It can also test the strength and security of passwords using different methods, such as brute force, dictionary, rainbow table, and cryptanalysis. CrackStation is a project started by Defuse Security to raise awareness about insecure password storage in web applications and to provide guidance to implementors of user authentication systems.