Stop the Threats From Within

Insider threats come from current or former employees, contractors, or partners who have access to the corporate network and intentionally or accidentally exfiltrate, misuse or destroy sensitive data. Because these insiders are already inside your organization, they often use legitimate credentials and permissions to access and download sensitive material and thus evade detection from traditional security products.

Splunk can help you detect and defeat insider threats in the following manner:

  • Alert when user actions or patterns are seen that are indicative of insiders inappropriately obtaining sensitive data or exfiltrating it via the network or endpoint
  • Alert when outliers are seen off of a baseline of what is normal behavior for a peer group, as these outliers may be insider threats
  • Initiate automated mitigation once an insider threat has definitively been identified
  • Complement other security technologies which may not be able to provide full visibility into a user’s internal actions, or may be circumvented by the insider
  • Rapid investigation of insider activity by searching through weeks or months of historical event data to quickly determine the scope, intent and severity of the user’s actions
  • Detect cyber-attacks with an out-of-the-box User Behavior Analytics solution that leverages data science and machine learning

Insider Threat Patterns

 

Insider threat patterns vary, so Splunk software lets you create unique searches tailored to your specific business in order to detect these threats. Here are a few examples of what an insider threat pattern might look like. You can easily turn each of these patterns into real-time searches using Splunk software to generate alerts if your predetermined search parameters are met. These types of patterns can also be combined for even greater accuracy.

Insider Threats diagram
 
Detecting Insider Threats at a Financial Institution

Learn how a financial institution used Splunk to effectively monitor contractors to detect potential security breaches before they could impact the confidentiality of customer data.

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Splunk Enterprise Security

A fast path to detecting insider threats is Splunk Enterprise Security which has pre-packaged content and capabilities for a wide range of SIEM use cases, including user activity/access tracking. This app includes pre-built searches and dashboards to identify suspicious user activity, visualizations to investigate users, and the ability to integrate with Active Directory or a human resources database to obtain additional detail about an employee which can be then be incorporated into correlation searches, risk scoring, or investigations.  

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Ask a Security Expert

Joe Goldberg

 

Expertise: Using Splunk for security use cases including incident investigation/forensics, external and internal threat detection, compliance and fraud.

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