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Spyware
Spyware is a program which infects and collects information of the computer without the owner s knowledge
or consent. spyware generally infects a computer system by getting transmitted through Internet via
websites webpages or emails. It intrudes into a computer and silently steals the data of the computer. In
other words it refers to that kind of software which can track the activities of a computer system and report
to the users. eylogger is an example of a spyware.
Spam
Spam refers to an unwanted and unsolicited message which is received in the inbox of a person s email
account or newsgroups. he one who sends the spam is called a spammer . enerally spams are sent with an
intention to advertise products and services.
here are other threats to computer:
Online Predator: hese are people who trap you into inappropriate relationships. hey may be older
people but pose to be of your age bullying you into doing illegal activities online.
Internet Scams: e may receive very attractive offers saying you have won a huge money in a lottery and
you can claim the pri e by depositing a certain amount of money. hey gain access to your account details
and misuse later.
Identity: here are cases where a hacker steals your personal information and assumes your identity. ith
this false identity the hacker can gain access to your account information or perform illegal activity.
Software Piracy: It is stealing of software and using or distributing unlicensed and unauthorised copies of
a computer program or software.
SYMPTOMS OF COMPUTER VIRUS
hen virus infects human beings it damages the body which is evident through certain symptoms. In the
similar manner there are certain symptoms that hint that a computer has been infected by virus like:
Slowdown: Fall in speed of processing of computer.
Pop-Ups: ppearance of unexpected pop-ups on the system.
Crash: Fre uent crashing of system or SO lue Screen of eath .
Running Out of Storage Space: Occupying huge space of storage.
Loss of File: brupt deletion of files of a computer system.
Unusual Activity of Messages or Programs: utomatic opening or closing of a program abrupt restarting
of a computer and opening of strange or unknown windows during the process of booting.
Unusual Network Activity: nusual network activity such as excessive transfer of data even when all the
applications are closed.
WAYS TO PREVENT A VIRUS
here are many remedial measures with which we can fight with the viruses. here is a popular saying
“ revention is better than cure”. et us discuss some of the popular preventive measures to keep virus at
bay.
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