| Statistic Verification |
| Source: Microsoft Security Intelligence Report, Panda Security, Consumer Reports |
| Date Verified: 7.11.2012 |
| Computer Virus Statistics | Data |
| Number of US households that experience heavy spam | 24 million |
| Number of households that have had serious virus problems in the past 2 years | 16 million |
| Number of households that have had spyware problems in the past 6 months | 8 million |
| Number of households that lost money or had accounts misused by phishing | 1 million |
| Estimated cost to US households for viruses, spyware and phishing | $4.55 billion |
| Percent of all US households that have been affected by viruses | 40 % |
| Most widespread virus to date by number of infections – “Conficker Virus” | 8,976,038 |
| Threats by Type | |
| Viruses | 57 % |
| Misc. Trojans | 21 % |
| Trojan downloaders and droppers | 7 % |
| Misc potentially unwanted software | 4 % |
| Adware | 3 % |
| Exploits | 3 % |
| Worms | 2 % |
| Password stealers and monitoring tools | 2 % |
| Backdoors | 1 % |
| Spyware | 0.01 % |
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