Page 6 - BLI Annual Report 2015
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BREACH LEVEL INDEX
LEADING SOURCES OF DATA BREACHES
A key part of defending against cyber security attacks is knowing who the adversaries are and what tactics they used. Armed with this knowledge, organizations can at least take steps to mitigate future risk of attack or loss of data.
In 2015 the leading source of data breaches was malicious outsiders, accounting for 964 attacks, or
58% of the total. Those figures are actually up slightly from the year before, when malicious outsiders were also the number one source of breaches. Attacks by these cybercriminals exposed more than 265.2 million records, or 37% of the total, in 2015.
While malicious outsiders accounted for the biggest percentage of data breach incidents, accidental loss of data records accounted for 36% of
all records lost (257.7 million) due mainly to the United States government’s loss of more than 191 million voter records. Accidental loss accounted for the second largest number of breaches with 398, or 24% of the total.
Next among the sources of attacks were malicious insiders, who launched 238 attacks (14%). These attacks exposed 46.3 million records (7%).
Hacktivists were next on the list, conducting 36 attacks (2.1% of the total), which accounted for 30.6 million records exposed (4%). While this is still a relatively small portion of the overall breaches,
it represents are fairly significant jump from 2014, when hactivists launched only 20 attacks that affected 8.2 million records.
State-sponsored attacks totaled
33 in 2015, for 2% of the total. These breaches involved 107.7 million records (15%). It’s notable that the number of records is fairly high given the relatively low number of state-sponsored breaches.
NUMBER OF BREACH INCIDENTS BY SOURCE
STATE SPONSORED
MALICIOUS OUTSIDER
33 INCIDENTS (2%)
964 INCIDENTS (58%)
HACKTIVIST
36 INCIDENTS (2%)
MALICIOUS INSIDER
238 INCIDENTS (14%)
ACCIDENTAL LOSS
1,673
TOTAL BREACHES
Source: BREACHLEVELINDEX.COM January 2015 to December 2015
398 INCIDENTS (24%)
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