This is based upon the 250 data breaches reported by the ITRC as of Monday, June 15.
Having maintained a data breach list since 2005, the ITRC knows that this is just the tip of the iceberg, as many breaches go unreported and unpublicized.
ITRC considers malicious attacks as the "insider theft" and "hacking" categories.
In the first half of 2009, 18.4% of all breaches were from "insider theft."
This compares to 15% (2008), and 6% (2007).
In the same period of 2009, "hacking" totaled 18% of all data breaches, compared to 11.7% (2008) and 14.1% (2007).
These 2009 percentages represent a significant increase over 2008 (+10%).
Malicious attacks now represent 36% of the 250 breaches this year.
For more of this report, and various supplemental reports, visit the ITRC here.
Reported data breaches for 2007 tallied 446.
Reported data breaches for 2008 tallied 656
See earlier blog for more info on the ITRC's report for "reported" data breaches for 2008 released in January.
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