Page 6 - BLI Annual Report H1 2015
P. 6

BREACH LEVEL INDEX
DATA BREACHES BY SOURCE
The leading source of data breaches in the first half of
2015 continues to be malicious outsiders, who are responsible for 546 of the breaches in this period and comprise 61.5% of the total. The share of attacks attributed
to outsiders has risen steadily since the first half of 2013 when it accounted for only 52%.
Accidental loss is the next highest source of data breaches. At 197, accidental loss accounts for 22.2% of all data breaches in the first half of 2015. Rounding out the top
five source types are malicious insiders (107 breaches for 12.0%), hacktivists (19 breaches for 2.5%), and state sponsored (17 breaches for 2.2%).
Compromised
Data Records
In terms of compromised data records, malicious outsiders took the top spot with 114.5 million stolen. This accounted for nearly half of all the records exposed
in breaches during the period (46.6%). It’s notable that the share was down considerably
NUMBER OF BREACH INCIDENTS
MALICIOUS OUTSIDER ACCIDENTAL LOSS MALICIOUS INSIDER HACKTIVIST
STATE SPONSORED
6
Other sources of records theft in first half of 2015 were accidental loss (28.6 million for 11.6%), malicious insiders (784,000 for 0.3%), and hacktivists (562,000
for 0.2%). The number of records affected by accidental loss dropped dramatically from the second half of 2014, when it was 305.2 million for 48.7%. Similarly, the amount of records lost because of malicious insiders has decreased sharply from 106.2 million (25.6%) in
the first half of 2014 and 52.9 million (8.5%) in the second half of that year.
from first half of 2013 (93.2%), the second half of 2013 (96.3%), and the first half of 2014 (71.8%). It was similar to the 42% share in the second half of last year, which may indicate that records lost due to breaches by malicious outsiders have leveled off.
The next highest source of data records lost was state-sponsored attacks with 101.5 million (41.3%). That was a significant increase from any previous period since 2013. For example, in 2013 and 2014, the amount of data records affected by state-sponsored breaches was negligible and garnered a share of just 1.1% of all records in the second half of 2014.
BY SOURCE
12%2% 2%
22%
62%


































































































   4   5   6   7   8