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Splunk Enterprise Security (ES) - SIEM Product Overview and Insight

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See our complete list of Top 10 SIEM Products.
See user reviews for Splunk Enterprise Security.

Bottom Line

Splunk's SIEM system is highly rated and popular, but licensing costs may push it beyond the reach of some SMEs. It is best for larger, well staffed IT organizations willing to pay the price for high security effectiveness. Gartner has rated it as a Leader in its SIEM Magic Quadrant for the last several years and continues to rate it as one of the top SIEM products.

Company Description

Splunk was founded in 2002 and went public in 2012. Currently, 40 percent of the company's business comes from security. Splunk ES is used with its core Splunk Enterprise product, which can search, monitor and analyze any machine data to provide insight.

Product Description

Splunk's flagship SIEM technology, Enterprise Security (ES), shows Splunk's origins in analytics. It integrates with the company's User Behavior Analytics (UBA), Machine Learning toolkit and Phantom Security Orchestration Automation and Response (SOAR). Splunk Enterprise Security supports all basic and advanced SIEM features, as well as tool orchestration and automation across the security and IT ecosystem, and analytics with machine learning-based anomaly and threat detection. Splunk ES is an analytics-driven SIEM that enables security teams to detect, investigate and respond to internal and external attacks, and to simplify threat management. It centralizes and aggregates all security-relevant events as they're generated from their source. In addition, it supports a variety of reception/collection mechanisms, and provides ad hoc searching and reporting for breach analysis.

In recent months, the company has introduced additional features such as:

  • Event Sequencing to help optimize threat detection and accelerates investigations
  • Use Case Library simplifies incident detection and response
  • Investigation Workbench reduces time to contain and remediate threats by centralizing data

Splunk SIEM Features Rated

Threats blocked: Tops. Splunk ES can help identify and remediate all security threats, including ransomware, cryptojacking, DDoS attacks, malware, phishing, insider threats, and more.

Sources ingested: Very good. Splunk's app store, Splunkbase, has more than 900 apps from different security technology organizations.

Performance: Very good. Splunk ES customers use it for many Terabytes per day.

Value: Very good. Gartner clients that have implemented Splunk raise concerns about the licensing model and overall cost to implement the solution. However, those willing to pay the price or Splunk ES are likely to see good ROI. A large U.S. cabinet-level department swapped out a legacy SIEM tool with Splunk Enterprise and saved $900,000 a year on software maintenance.

Implementation: Good. For Splunk Cloud, Splunk ES can be ready to use in days if the data sources are accessible. For on-premises deployments, however, Splunk does not offer an appliance version. Organizations must work with a Splunk partner that provides the integration on supported hardware. In general, implementation takes anywhere from a few days to a few weeks.

Management: Very good. Splunk ES has built-in management features and workflows that simplify configuration, maintenance, auditing and customizing. While it may not the easiest security product to manage, users are generally pleased with the benefits.

Support: Good. Customers can choose from Standard or Premium Success Plans. The Standard Plan is for businesses with typical needs and the Premium Plan is for businesses desiring rapid product deployment and adoption (starting at 500 GB capacity).

Scalability: Very good. There are no specific limitations on servers, users or scale for use of ES.

Splunk SIEM review

Security Qualifications

CC certified. Splunk says it is used by nearly every federal agency.

Intelligence

Splunk's Adaptive Response framework enables security teams to apply changes to adapt to the attacker. Splunk ES integrates with Splunk User Behavior Analytics (UBA), which uses unsupervised machine learning algorithms to provide anomaly and threat detection. In addition, it is integrated with the Splunk Machine learning toolkit.

Delivery

Splunk ES can be used in on-premises, cloud and hybrid deployment models.

Agents

Agents are not required to use Splunk. However, a Splunk universal forwarder can also be used to sit on the endpoint and collect endpoint analytics data.

Pricing

Pricing is available as a perpetual or annual term license, is based on maximum daily data ingestion, and starts at $2,000/year for 1 GB/day. Splunk Cloud is available for monthly or annual subscription. Splunk ES is available for Splunk Enterprise and Splunk Cloud and is priced based on max daily volume of data indexed in GB/day. At lower volumes, pricing for Enterprise Security is 1:1 that of Splunk Enterprise and drops to roughly 1:4 at higher volume. Splunk ES pricing is for unlimited users to use all security-relevant data to solve all security-related use cases. It is also available as a cloud service.

For more analysis of Splunk, see our SIEM product comparisons IBM QRadar vs Splunk, SolarWinds vs Splunk, ArcSight vs Splunk and LogRhythm vs Splunk.

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