Computer Virus Statistics
Statistic Verification
Source: Microsoft Security Intelligence Report,
Panda Security, Consumer Reports
Date Verified: 7.11.2012
Computer Virus StatisticsData
Number of US households that experience heavy spam24 million
Number of households that have had serious virus problems in the past 2 years16 million
Number of households that have had spyware problems in the past 6 months8 million
Number of households that lost money or had accounts misused by phishing1 million
Estimated cost to US households for viruses, spyware and phishing$4.55 billion
Percent of all US households that have been affected by viruses40 %
Most widespread virus to date by number of infections – “Conficker Virus”8,976,038
Threats by Type
Viruses57 %
Misc. Trojans21 %
Trojan downloaders and droppers7 %
Misc potentially unwanted software4 %
Adware3 %
Exploits3 %
Worms2 %
Password stealers and monitoring tools2 %
Backdoors1 %
Spyware0.01 %

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