Devices generate an average of 10,000 security events per day
The number of security events sheds light on why recent high profile attacks go undetected for so long.
Devices in an average company's network are generating an aggregate average of 10,000 security events per day, with the most active generating around 150,000 events per day, a new report said.
In addition, large, globally-dispersed enterprises were averaging 97 active infected devices each day and leaking an aggregate average of more than 10GB of data per day, according to Damballa's Q1 2014 State of Infections Report, compiled from analysis of 50 percent of North American ISP Internet traffic and 33 percent of mobile traffic, plus large volumes of traffic from global ISPs and enterprise customers.
That is just one small indication showing how daunting it is for security staff to manually go through mountains of alerts in order to discover which (if any) constitute a real and present threat.
It also sheds light on why recent high profile attacks at organizations like Target ended up not detected for so long, since alerts don't equal infections. The only way to determine if a device has an infection is to correlate logged activity, which takes far too much time and man hours.
Advanced techniques such as Domain Generation Algorithms (DGA), used by threat actors to generate vast quantities of random domain names, can evade prevention controls and delay identification of actual infections. These techniques require security teams to wade through thousands of anomalous IP domains in order to find the IP address that carries the real payload.
In a test conducted by Damballa Labs, where "dirty" network traffic ended up replayed past more than 1,200 simulated endpoints, they were able to collect and correlate 538 pieces of evidence for each actual infection.
"We are already facing a profound scarcity of skilled security professionals, which the latest Frost & Sullivan figures estimate will equate to a 47 percent shortfall by 2017," said Brian Foster, CTO of Damballa. "If we compound this fact with the increase in data breaches and the scope of work required to identify a genuine infection from the deluge of security events hitting businesses every day, we can see why security staff are struggling to cope."
As previously stated, the enterprises studied averaged 97 infections daily. The ability to reduce the time spent to find these infected devices is significant. The Ponemon Institute reported it takes companies an average of nearly three months (90 days) to discover a malicious breach and four months or longer to resolve it.
The ability to reduce the time-to-discovery from 90 days to 1 day, across those 97 infected devices, would result in a savings of 89 man-days per device, or 8,633 man-days (23.65 years) per enterprise. Not only is this a tremendous saving in time, but it significantly shrinks the window of when an enterprise is vulnerable to that particular attack.
Gregory Hale is the editor and founder of Industrial Safety and Security Source (ISSSource.com), a news and information website covering safety and security issues in the manufacturing automation sector. This content originally appeared on ISSSource.com. Edited by Brittany Merchut, Project Manager, CFE Media, bmerchut(at)cfemedia.com
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