Number of cyber crime incidents reported to US-CERT* by federal agencies in 2010, by type of incident

Type of reported incident Number of incidents
Denial of service 23
Scans, probes and attempted access 4,419
Unauthorized access 5,775
Improper usage 7,329
Under investigation / other 11,336
Malicious code 12,864
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This statistic shows the number of cyber crimes that were reported to the US-CERT by federal agencies in 2010, sorted by type of incident. 12,864 incidents involving malicious code were reported to the US-CERT in the fiscal year 2010.

Internet - Statistics & Facts
Internet  - Statistics & Facts
Additional information
You can find additional information about this statistic on statista.com
http://www.statista.com/statistics/194246/cyber-crime-incidents-reported-to-us-cert-by-federal-agencies/