A computer virus is a
program which is of very small size with the capability of propagating from one
machine to another disrupting the capability of the infected
machine. There can be loss of key data and in some cases can result in
system crash. There are many programs which can help in the removal of computer
viruses.
Potential sources of virus infection are:
- E-mail attachments are that
most common source of virus infections.
- Viruses can infect when
reading a web page. Virus can infect only when downloading a program or
running it.
- Viruses also come from
downloading files, images, audios and videos from sources which are
unknown or through opening of email attachments which are suspicious.
There would not be computer
infection with
downloading of files. The file can infect only when installed or opened.
- By using floppy
disks containing virus.
- Programmers who create them
and propagate them via internet to bigger organizations and then develop
anti-virus to the virus propagated. This is generally done with a view to
earn money, by selling anti-virus to the organizations.
- According to the latest report
by CNN, plugging a new device to a user; computer and can cause digital
infection. Companies which sell digital products at a very low price
are mostly termed as source as per the report.
- Virus can be programmed into system by a disgruntled
employee
- Virus can also be programmed
by “fun-loving” or irresponsible employee.
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