The independent Ponemon Institute's "The First Annual Cost of Cyber Crime Study" (PDF), which was sponsored by ArcSight, showed a median cost of $3.8 million for an attack per year, a price tag that includes everything from detection, investigation, containment, and recovery to any post-response operations. "Information theft was still the highest consequence -- the type of information [stolen] ranged from a data breach of people's [information] to intellectual property and source code," says Larry Ponemon, CEO of the Ponemon Institute. "We found that detection and discovery are the most expensive [elements]."
And a separate report called "The Leaking Vault" (PDF) released today by the Digital Forensics Association found that among the 2,807 publicly disclosed data breaches worldwide during the past five years, the cost to the victim firms as well as those whose information was exposed came to whopping $139 billion.
The Digital Forensics Association report says nearly half of all of the reported breaches came from a laptop, which in 95 percent of the cases is stolen. But actual hacks accounted for the most stolen records during 2005 to 2009, with 327 million of the 721.9 million covered in the report, even though hacks accounted for only about 16 percent of the data breaches.
Ponemon found that Web-borne attacks, malicious code, and malicious insiders are the most costly types of attacks, making up more than 90 percent of all cybercrime costs per organization per year: A Web-based attack costs $143,209; malicious code, $124,083; and malicious insiders, $100,300. "If you look at the actual attacks, they were found most frequently as viruses, worms, and Trojans," Ponemon says. "But in terms of each individual attack ... a SQL injection is more expensive on attack-by-attack basis."
Interestingly, botnets made up only 8 percent of the attacks, with a price tag of about $1,627. But that number could be conservative given some of the unknowns about the origins of the attacks, Ponemon says. "We think those numbers are conservative," he says. "My gut feeling is they are really more expensive."
Nearly half of all breach costs occur in detection and recovery, and the average number of days to recover and resolve from an attack was 14 days, with a cost of $17,696 per day, according to the report. But when an attack comes from a malicious insider, it takes 42 or more days to resolve.
"It seemed that the majority of the 45 organizations were random and haphazard in their approach" to the problem, Ponemon says. "They didn't have the right tools or technologies, and they didn't know what kinds of threats there were and that the actual attacks were happening" until afterward. One finding in the report gave a nod to SEIM tools: Organizations with a SIEM solution incurred 24 percent less costs of the breach than those that did not.
Meanwhile, the Digital Forensics Association report found when data breaches occurred due to an insider issue, it was more than twice as likely to be inadvertent. Outside breaches were the cause of 48 percent of the incidents, and third parties, 16 percent.
It also found a similar trend in the attack vectors that Ponemon's data shows, with malware leading the attacks (25 percent), followed by SQL injection, (24 percent). Stolen or abused credentials were used in 16 percent of the breaches.
Social security numbers are the most commonly compromised form of data, with 69 percent of the breaches during the five-year period exposing SSNs, followed by credit cards, with 14 percent. But the credit-card data point is a bit tricky, the report says: "That low number is deceiving, however, given the impact of the 328.1 million records disclosed. This one data element accounted for 45 percent of the records in the study. Clearly, this is a desirable target for data thieves," the report says. "If we added the SSN and credit card records together, it would account for 80 percent of the records."
Have a comment on this story? Please click "Discuss" below. If you'd like to contact Dark Reading's editors directly, send us a message.