In its 2013 Data Breach Investigations Report, Verizon said that it had analysed more than 47,000 reported security incidents last year and found 621 “confirmed data disclosures” where at least 44 million records had been “compromised”. More than half of the 621 data disclosures involved hacking, it said.
“52% of breaches affecting all organisations involved hacking,” the report said. “That figure changes to 72% of small organizations and 40% of large organisations.”
Read more on Out-Law.com. You can access the full DBIR here (pdf).