The article give a brief knowledge about the problems we face with viruses and how can we prevent our computer from those viruses.

1. Computer viruses and its prevention
We are using computer from a long time. After a while, now we are familiar with word virus. A virus is a
part of malware which is created to damage the computers or hacking the confidential passwords from
your pc. We can find hundreds of thousand threats every day and some of them are very new which
can’t be identified with us. We don’t notice them but they are affecting our day to day useful items such
as smart phones, computer or eve internet. To prevent our computer from such threats we install some
security software’s on our computer. Their work is to warn us about that type of suspicious page, if
there, or even the attachment from email which can be affecting your computer.
From next paragraph, we tell you about the heavy damages of computer because of this virus, and what
type of this threat are, but before that lets understand how much they are.
The experts recommend that there are 5 Top computer viruses for all time. Now let us understand
them.
1. The mydoom virus- the win32.Mydoom.A or Worm popularly known as Mydoom virus is very
high level computer damaging virus that can affect Microsoft windows based computers. It is
able to spread through mass emailing, disguised as badly sent email. This virus was created with
the intention of damage computer with the help of attachment in an email. It was created at
year 2004 and approximately 2,000,000 pcs got infected. It shows the damage of
$38,000,000,000 and can be spread with the speed of 2 hours.
2. The sobig.f- This worm is very badly known for damage of millions of Internet connected,
Microsoft windows computers. It is just not only the computer worm but also a trojanhorse
which is more than a malware. It comes with an electronic mail with the following subjects:
a. That can be seen as Re: Approved
b. Also Re: Details
c. Or Re: Re: My details
d. Re: Thank you!
e. Re: That movie
f. Re: Wicked screensaver
g. Re: Your application
h. Thank you!
i. Than it can ask Your details
It was created at year 2003 and damaged almost 2,000,000 pcs. With the damage of $
37,100,000,000 it can spread with the speed of 96 hours.
3. The ILOVEYOU virus- Love bug or love letter popularly known as ILOVEYOU virus is a
computer threat which is very badly named that it attacked 10 of millions windows personnel
computers. It was created at year 2000 and damaged 500,000 computers. Making a loss of
$15,000,000,000 it can spread with speed of 9 hours.

2. 4. Code Red worm- It is a computer worm cause the damage of computers. It was created at
year 2001 with damage of 1,000,000 pcs. It made the loss of $2,600,000,000 and can be
spread with the speed of 14 hours.
5. SQL Slammer- This virus also known as computer worm that take blame for denial of
service on some Internet hosts and dramatically make slow the general Internet traffic. With
the damage of 200,000 computers it made the loss of $1,200,000,000 and can be spread at
the speed of 10 minutes and it was created at year 2003.
The modern users like us is aware of that type of viruse and always be ready to protect our pcs from
such viruses. If you want the same then you should follow some basic steps:
 You should keep your operating system and software up to date. Apply the updates and patches
as soon as they’re released by the maker of the OS or a software product from google or other.
 Stop to rush your emails, but always check if a message has come from somebody you know or
don’t, pay attention to its content, and think twice before you open or save an attachment. The
tricky part is that even if you know the sender, it may be a virus that has misused your friend’s
address book, and sent you an infected message as example.
 Complement your computer and online security awareness with a security software with a good
example of Norton Security or alike.
To learn more about how computer viruses
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