Have you noticed the number of vendors that have jumped on the “Threat Intelligence” bandwagon recently?
Threat Intel is the hot commodity with paid sources touting their coverage and timeliness while open sources tout the size of their lists. The FBI shares its info via Infraguard while many other ISACs are popping up across industry verticals allowing many large companies to compile internal data.
All good right? More is better, right? Actually, not quite.
Look closely. You are confusing “intelligence” with “data”.
As the Lt Commander of the Starship Enterprise would tell you, Data is not Intelligence. In this case, intelligence is really problem solving. As defenders, we want this data in order to answer “Who is attacking our assets and how?” Which would lead to coherent defense.
The steps to use Threat Data are easily explained:
1) Compare observations on the local network against the threat data.
2) Alert on matches.
Now comes the hard part…
3) Examine and validate the alert to decide if remediation is needed. This part is difficult to automate and really the crux of converting threat data to threat intelligence. To do this effectively would require human skills that combine both expert knowledge of the modern ThreatScape with knowledge of the network architecture.
This last part is where most organizations come up hard against ground reality. The fact is thatdetailed knowledge of the internal network architecture is more common within an organization (more or less documented but present in some fashion/degree), than the expert knowledge of the modern ThreatScape and the contours/limitations of the threat data.
You could, of course hire and dedicate staff to perform this function but a) such staff are hard to come by and b) budget for this is even harder.
Consider a co-managed solution like SIEM Simplified where the expert knowledge of the modern ThreatScape in the context of your network is provided by an external group. When this is combined with your internal resources to co-manage the problem, it can result in improved coverage at an affordable price point.