Explanation:
A password cracker is an application program that is used to identify an unknown or forgotten password on a computer or network resources. It can also be used to help a human cracker obtain unauthorized access to resources. A password cracker can also check for weak passwords on the network and give notifications to put another password.
Incorrect Answers:
B: Antivirus or anti-virus software is used to prevent, detect, and remove malware. It scans the computer for viruses.
C: Anti-spyware software is a type of program designed to prevent and detect unwanted spyware program installations and to remove those programs if installed.
D: Wireshark is a free and open-source protocol analyzer. It is used for network troubleshooting, analysis, software and communications protocol development, and education.