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Q: Computer Virus Question ( Answered,   1 Comment )
Subject: Computer Virus Question
Category: Computers > Security
Asked by: adamharrell-ga
List Price: $25.00
Posted: 24 Jul 2006 11:39 PDT
Expires: 23 Aug 2006 11:39 PDT
Question ID: 749071
how many total computers are infected by computer viruses each year (estimated)?
Subject: Re: Computer Virus Question
Answered By: pafalafa-ga on 26 Jul 2006 15:01 PDT

There's no precise count that I know of, but it is possible to make a
reasonable estimate of the number of computers infected by viruses
each year.

Though the world probably hasn't quite hit the billion-computer-users
mark yet, it's awfully close.  A lot of PCs enter the market each
year, and more and more people around the world have access to a
computer and to the internet.  Each year, industry ships about 150-200
million brand new desktops, laptops and servers.

Given these huge numbers, it seems reasonable to suppose that about
500 million computers are in use with internet access around the

How many of these become infected with viruses?

There are no comprehensive accounts of the number of virus infections
worldwide, but we can make some educated guesses.  The numbers are
doubtless large...a single virus can infect upwards of 10 million
users around the world!

According to the latest FBI statistics on cybercrime, 52% of computer
users (mostly from the business community) experienced some sort of
unathorized use or intrusion of their computer systems (down from a
high of 70% of users in 2000).

Of those unauthorized uses, 65% were virus attacks (a survey by
Microsoft found similar, but somewhat higher, numbers of computer

In other words, out of 1,000 computers, about 520 were subject to some
sort of unauthorized use or attack.

Out of those 520 computers, 65% of them were infected by viruses. 
This amounts to 338 computers out of every 1,000.

Put another way, about 33.8%, or roughly a third, of all computers are
victims of virus attacks each year.

With our estimate of 500 million computers in the world, we can
calculate that there are [ 500 million * 0.338 ] =

169 million computers 

infected with viruses around the world. 

I trust this estimated number meets your needs.  But if there's
anything else I can do for you, just let me know by posting a Request
for Clarification, and I'm at your service (as long as my computer
remains virus-free, that is!).



A billion PC users on the way
August 2, 2004
Microsoft's Malware Report: 60 Percent of PCs Infected
Blaster worm could have infected over 8 million PCs
April 5, 2004

search strategy -- Used bookmarked links to cybercrime sites, along
with Google searches on combinations of terms:

million PCs infected

computer virus
Subject: Re: Computer Virus Question
From: tomhawk-ga on 06 Sep 2006 08:28 PDT
The charts below show the top countries, Domain Name Service (DNS)
top-level domains, DNS domains, and connection types of infected
computers. The top-level domains and domains closely match the country
distributions -- the top-level domain spaces of highly-infected
countries appear on both lists.

Country Minimum Estimate Maximum Estimate 
Count Percent Count Percent 
India 151341 32.23 273013 28.83 
Peru 87599 18.65 150785 15.92  
Italy 38216 8.13 58002 6.12  
Turkey 28264 6.01 43437 4.58  
United States 26315 5.6 58791 6.2  
Egypt 12201 2.59 25104 2.65 
Malaysia 11160 2.37 19942 2.1  
Indonesia 9323 1.98 21332 2.25  
Greece 8348 1.77 13684 1.44  
Mexico 5578 1.18 10341 1.09  
Saudi Arabia 2519 0.53 51780 5.46 
United Arab Emirates 1858 0.39 19371 2.04 

TLD Minimum Estimate Maximum Estimate 
Count Percent Count Percent 
Unknown 173510 36.95 367750 38.84  
net 77706 16.55 141308 14.92  
pe 71881 15.3 123960 13.09  
it 31367 6.68 45923 4.85  
in 25127 5.35 52818 5.57  
com 18516 3.94 39283 4.14  
tr 16162 3.44 24204 2.55  
gr 6766 1.44 10149 1.07  
mx 4818 1.02 9097 0.96  
my 3988 0.84 5950 0.62  
id 3952 0.84 8776 0.92  
sa 1950 0.41 45565 4.81  

This is for NYXEM<

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