In false accusations, many cyberstalkers try to damage the reputation of their victim and turn other people against them. They post false information about them on Websites. They may set up their own Websites, blogs, or user pages for this purpose. They post allegations about the victim to newsgroups, chat rooms, or other sites that allow public contributions. Answer option D is incorrect. In false victimization, the cyberstalker claims that the victim is harassing him/her. Answer option C is incorrect. In this type of cyberstalking, many cyberstalkers try to involve third parties in the harassment. They claim that the victim has harmed the stalker in some way, or may post the victim's name and telephone number in order to encourage others to join the pursuit. Answer option B is incorrect. In an attempt to gather information, cyberstalkers may approach their victim's friends, family, and work colleagues to obtain personal information. They may advertise for information on the Internet. They often will monitor the victim's online activities and attempt to trace their IP address in an effort to gather more information about their victims.

Dsniff is a set of tools that are used for sniffing passwords, e-mail, and HTTP traffic. Some of the tools of Dsniff
include dsniff, arpredirect, macof, tcpkill, tcpnice, filesnarf, and mailsnarf. Dsniff is highly effective for sniffing
both switched and shared networks. It uses the arpredirect and macof tools for switching across switched
networks. It can also be used to capture authentication information for FTP, telnet, SMTP, HTTP, POP, NNTP,
IMAP, etc.
Answer option B is incorrect. Cain is a multipurpose tool that can be used to perform many tasks such as
Windows password cracking, Windows enumeration, and VoIP session sniffing. This password cracking
program can perform the following types of password cracking attacks:
Dictionary attack
Brute force attack
Rainbow attack
Hybrid attack
Answer options D and C are incorrect. These tools are port scan detection tools that are used in the Linux
operating system.

Asymmetric

Updating the anti-virus software regularly is the best way of protecting important data against virus attack.