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# OpenText ArcSight Enterprise Security Manager (ESM) vs Splunk Enterprise Security Comparison - What are their main differences?

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ArcSight Enterprise Security Manager (ESM)Splunk[+ Add Product](#)

Pricing

**OpenText ArcSight Enterprise Security Manager (ESM)**
No pricing available

**Splunk Enterprise Security**
No pricing available

**Pricing Insights**
from reviews

Time to Implement

**OpenText ArcSight Enterprise Security Manager (ESM)**
Not enough reviews yet

**Splunk Enterprise Security**
3 months

Based on 6 responses

Return on Investment

**OpenText ArcSight Enterprise Security Manager (ESM)**
Not enough reviews yet

**Splunk Enterprise Security**
18 months

Based on 5 responses

Perceived Cost

**OpenText ArcSight Enterprise Security Manager (ESM)**
$$$$$

**Splunk Enterprise Security**
$$$$$

Average Discount

**OpenText ArcSight Enterprise Security Manager (ESM)**
Not enough reviews yet

**Splunk Enterprise Security**
22%

**Pros & Cons**
from reviews

**OpenText ArcSight Enterprise Security Manager (ESM)**
Not enough data

**Splunk Enterprise Security**
[
Ease of Use (15)
](https://www.g2.com/products/splunk-enterprise-security/reviews?filters%5Bsentiment_snippet%5D=1778830&qs=pros-and-cons#reviews)[
Easy Integrations (13)
](https://www.g2.com/products/splunk-enterprise-security/reviews?filters%5Bsentiment_snippet%5D=1779238&qs=pros-and-cons#reviews)[
Expensive (17)
](https://www.g2.com/products/splunk-enterprise-security/reviews?filters%5Bsentiment_snippet%5D=1778902&qs=pros-and-cons#reviews)[
Complex Setup (8)
](https://www.g2.com/products/splunk-enterprise-security/reviews?filters%5Bsentiment_snippet%5D=2414412&qs=pros-and-cons#reviews)

Integrations

**OpenText ArcSight Enterprise Security Manager (ESM)**
Not enough data

**Splunk Enterprise Security**
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AWS CloudTrail

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AWS Transfer Family

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Azure Active Directory...

](https://www.g2.com/products/azure-active-directory-domain-services/reviews)[

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Azure Firewall

](https://www.g2.com/products/azure-firewall/reviews)[
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**Ratings**
from reviews

Meets Requirements

**OpenText ArcSight Enterprise Security Manager (ESM)**

8.6

8.611

**Splunk Enterprise Security**

8.8

8.8199

Ease of Use

**OpenText ArcSight Enterprise Security Manager (ESM)**

7.9

7.911

**Splunk Enterprise Security**

8.2

8.2204

Ease of Setup

**OpenText ArcSight Enterprise Security Manager (ESM)**

6.3

6.38

**Splunk Enterprise Security**

7.8

7.8117

Ease of Admin

**OpenText ArcSight Enterprise Security Manager (ESM)**

6.9

6.98

**Splunk Enterprise Security**

8.3

8.3103

Quality of Support

**OpenText ArcSight Enterprise Security Manager (ESM)**

6.7

6.711

**Splunk Enterprise Security**

8.6

8.6188

Has the product been a good partner in doing business?

**OpenText ArcSight Enterprise Security Manager (ESM)**

9.0

9.07

**Splunk Enterprise Security**

9.0

9.0101

Product Direction (% positive)

**OpenText ArcSight Enterprise Security Manager (ESM)**

6.8

6.811

**Splunk Enterprise Security**

8.0

8.0195

**Features**
ratings from reviews

Security Information and Event Management (SIEM)[Hide 43 FeaturesShow 43 Features](javascript:void(0);)

8.3

12

8.5

125

Network Management

Activity Monitoring

9.0(won by 0.2)

10

8.8

104

|

Verified

Asset Management

9.3(won by 1.2)

9

 (There is a greater than 0.5 difference between this product's rating and its competitors)

8.1

90

|

Verified

Log Management

8.5

9

9.3(won by 0.8)

41

|

Verified

 (There is a greater than 0.5 difference between this product's rating and its competitors)

Network Monitoring

Not enough data

Not enough data

Server Monitoring

Not enough data

Not enough data

File Integrity Monitoring

Not enough data

Not enough data

Real-Time Monitoring

Not enough data

Not enough data

User Management

Not enough data

Not enough data

Endpoint Management

Not enough data

Not enough data

Compliance Management

Not enough data

Not enough data

Incident Management

Not enough data

Not enough data

Vulnerability Management

Not enough data

Not enough data

Policy Management

Not enough data

Not enough data

Event Logs

Not enough data

Not enough data

Incident Management

Event Management

8.3

9

8.7(won by 0.4)

101

|

Verified

Automated Response

6.7

9

8.4(won by 1.7)

93

|

Verified

 (There is a greater than 0.5 difference between this product's rating and its competitors)

Incident Reporting

8.9(won by 0.2)

9

8.7

99

|

Verified

Real-Time Reporting

Not enough data

Not enough data

Agentic AI - Security Information and Event Management (SIEM)

Autonomous Task Execution

Not enough data

Not enough data

Multi-step Planning

Not enough data

Not enough data

Proactive Assistance

Not enough data

Not enough data

Decision Making

Not enough data

Not enough data

Security Intelligence

Threat Intelligence

7.4

9

8.3(won by 0.9)

89

|

Verified

 (There is a greater than 0.5 difference between this product's rating and its competitors)

Vulnerability Assessment

8.1(won by 0.2)

6

7.9

88

|

Verified

Behavioral Analytics

7.8

6

8.5(won by 0.7)

97

|

Verified

 (There is a greater than 0.5 difference between this product's rating and its competitors)

Data Examination

8.8(won by 0.3)

7

8.5

99

|

Verified

Real-Time Data

Not enough data

Not enough data

Additional Functionality

Real-Time Notifications

Not enough data

Not enough data

Audit Trail

Not enough data

Not enough data

Application Security

Not enough data

Not enough data

Risk Analysis

Not enough data

Not enough data

AI Copilot

Not enough data

Not enough data

Data Import/Export

Not enough data

Not enough data

Alerts/Notifications

Not enough data

Not enough data

Prioritization

Not enough data

Not enough data

Security Auditing

Not enough data

Not enough data

Search/Filter

Not enough data

Not enough data

Compliance Tracking

Not enough data

Not enough data

Generative AI

Not enough data

Not enough data

API

Not enough data

Not enough data

Third-Party Integrations

Not enough data

Not enough data

Activity Dashboard

Not enough data

Not enough data

Data Visualization

Not enough data

Not enough data

Incident Response[Hide 40 FeaturesShow 40 Features](javascript:void(0);)

Not enough data

8.1

5

Response

Threat Intelligence

Not enough data

9.0(won by default)

5

Resolution Automation

Not enough data

Not enough data

Resolution Guidance

Not enough data

Not enough data

System Isolation

Not enough data

Not enough data

Incident Investigation

Not enough data

Not enough data

Records

Incident Logs

Not enough data

8.0(won by default)

5

Incident Reports

Not enough data

Not enough data

Management

Incident Alerts

Not enough data

7.3(won by default)

5

Incident Case Management

Not enough data

Not enough data

Workflow Management

Not enough data

Not enough data

Generative AI

AI Text Generation

Not enough data

Not enough data

AI Text Summarization

Not enough data

Not enough data

Generative AI

Not enough data

Not enough data

Additional Functionality

SSL Security

Not enough data

Not enough data

HIPAA Compliant

Not enough data

Not enough data

API

Not enough data

Not enough data

Threat Response

Not enough data

Not enough data

Endpoint Protection

Not enough data

Not enough data

Maintenance Scheduling

Not enough data

Not enough data

Third-Party Integrations

Not enough data

Not enough data

Security Auditing

Not enough data

Not enough data

Application Security

Not enough data

Not enough data

Encryption

Not enough data

Not enough data

Network Security

Not enough data

Not enough data

Real-Time Reporting

Not enough data

Not enough data

AI Copilot

Not enough data

Not enough data

Reporting/Analytics

Not enough data

Not enough data

Authentication

Not enough data

Not enough data

Financial Data Protection

Not enough data

Not enough data

Anti Virus

Not enough data

Not enough data

Secure Data Storage

Not enough data

Not enough data

Virus Definition Update

Not enough data

Not enough data

Activity Dashboard

Not enough data

Not enough data

VPN

Not enough data

Not enough data

Audit Trail

Not enough data

Not enough data

Anti Spam

Not enough data

Not enough data

Access Controls/Permissions

Not enough data

Not enough data

Data Visualization

Not enough data

Not enough data

Alerts/Escalation

Not enough data

Not enough data

Data Security

Not enough data

Not enough data

Show 1 feature category with incomplete data

AI SOC Agents[Hide 25 FeaturesShow 25 Features](javascript:void(0);)

Not enough data

Not enough data

Intelligent Alert Noise Reduction

Intelligent Alert Noise Reduction

Not enough data

Not enough data

Network Security

Network Security

Not enough data

Not enough data

Activity Monitoring

Activity Monitoring

Not enough data

Not enough data

Performance Metrics

Performance Metrics

Not enough data

Not enough data

Explainable AI (XAI) Audit Trail

Explainable AI (XAI) Audit Trail

Not enough data

Not enough data

Threat Propagation Visualization

Threat Propagation Visualization

Not enough data

Not enough data

Predefined Protocols

Predefined Protocols

Not enough data

Not enough data

Natural Language Security Querying

Natural Language Security Querying

Not enough data

Not enough data

Endpoint Protection

Endpoint Protection

Not enough data

Not enough data

Reporting/Analytics

Reporting/Analytics

Not enough data

Not enough data

Automated Threat Containment

Automated Threat Containment

Not enough data

Not enough data

AI/Machine Learning

AI/Machine Learning

Not enough data

Not enough data

Threat Response

Threat Response

Not enough data

Not enough data

Threat Detection & Triage - AI SOC Agents

False‑Positive Suppression

Not enough data

Not enough data

Anomaly Detection & Correlation

Not enough data

Not enough data

AI‑Driven Alert Triage

Not enough data

Not enough data

Investigation & Enrichment - AI SOC Agents

Autonomous Case Investigation

Not enough data

Not enough data

Contextual Enrichment from Multiple Sources

Not enough data

Not enough data

Attack Path Mapping

Not enough data

Not enough data

Response & Remediation - AI SOC Agents

Playbook‑Free Dynamic Workflows

Not enough data

Not enough data

Automated Response Execution

Not enough data

Not enough data

Mean Time Reduction Metrics

Not enough data

Not enough data

InfoSec Experience & Governance - AI SOC Agents

Conversational Analyst Interface

Not enough data

Not enough data

Manual Feedback Learning Loop

Not enough data

Not enough data

Explainability & Audit Trail

Not enough data

Not enough data

User Insights

Reviewers' Company Size

[![OpenText ArcSight Enterprise Security Manager (ESM)](https://images.g2crowd.com/uploads/product/hd_favicon/2b4f4de47adee5040ae421fc276784e9/opentext-arcsight-enterprise-security-manager-esm.svg "OpenText ArcSight Enterprise Security Manager (ESM)")](https://www.g2.com/products/opentext-arcsight-enterprise-security-manager-esm/reviews)

OpenText ArcSight Enterprise Security Manager (ESM)

Small-Business(50 or fewer emp.)

14.3%

Mid-Market(51-1000 emp.)

50.0%

Enterprise(\> 1000 emp.)

35.7%

[![Splunk Enterprise Security](https://images.g2crowd.com/uploads/product/hd_favicon/b92838221b8df42dd6b5bb09c9f8ff55/splunk-enterprise-security.svg "Splunk Enterprise Security")](https://www.g2.com/products/splunk-enterprise-security/reviews)

Splunk Enterprise Security

Small-Business(50 or fewer emp.)

11.1%

Mid-Market(51-1000 emp.)

27.0%

Enterprise(\> 1000 emp.)

61.9%

Small-Business

(50 or fewer emp.)

14.3%

11.1%

Mid-Market

(51-1000 emp.)

50.0%

27.0%

Enterprise

(\> 1000 emp.)

35.7%

61.9%

Reviewers' Industry

[![OpenText ArcSight Enterprise Security Manager (ESM)](https://images.g2crowd.com/uploads/product/hd_favicon/2b4f4de47adee5040ae421fc276784e9/opentext-arcsight-enterprise-security-manager-esm.svg "OpenText ArcSight Enterprise Security Manager (ESM)")](https://www.g2.com/products/opentext-arcsight-enterprise-security-manager-esm/reviews)
OpenText ArcSight Enterprise Security Manager (ESM)

Information Technology and Services

28.6%

Computer Software

21.4%

Computer & Network Security

21.4%

Non-Profit Organization Management

7.1%

Hospital & Health Care

7.1%

Other

14.3%

[![Splunk Enterprise Security](https://images.g2crowd.com/uploads/product/hd_favicon/b92838221b8df42dd6b5bb09c9f8ff55/splunk-enterprise-security.svg "Splunk Enterprise Security")](https://www.g2.com/products/splunk-enterprise-security/reviews)
Splunk Enterprise Security

Information Technology and Services

23.0%

Computer Software

9.3%

Computer & Network Security

8.0%

Financial Services

7.5%

Banking

4.4%

Other

47.8%

FAQs

## ArcSight Enterprise Security Manager (ESM) vs Splunk FAQs

Generated using AI

Last updated: August 15, 2026

### What is the difference between Splunk vs ArcSight Enterprise Security Manager (ESM)?

Splunk is rated higher by G2 reviewers and is cited for its ease of use and integrations, while ArcSight Enterprise Security Manager (ESM) is noted for its customizability but has a lower overall rating and support score.

| [Splunk](https://www.g2.com/products/splunk-enterprise-security/reviews) | [ArcSight Enterprise Security Manager (ESM)](https://www.g2.com/products/opentext-arcsight-enterprise-security-manager-esm/reviews) |
| --- | --- |
| 4.3/5 (248 reviews) | 3.7/5 (17 reviews) |
| — | — |
| 7.8 | 6.3 |
| 8.6 | 6.7 |
| Ease of Use, Easy Integrations | Customizability |

### How do the pricing models of Splunk and ArcSight Enterprise Security Manager (ESM) compare?

Splunk is favored by reviewers for value over ArcSight Enterprise Security Manager (ESM), as reflected in higher satisfaction scores related to pricing and cost.

- **Splunk:** In recent reviews, many cite Splunk as expensive but justify the cost with its robust features and integrations.
- **ArcSight Enterprise Security Manager (ESM):** Reviewers frequently mention that ArcSight ESM's licensing and pricing model is expensive, especially for small-scale enterprises, and violations of license usage can disable features.
- **Switching reasons:** Several reviewers mention switching from ArcSight ESM to Splunk due to dissatisfaction with ArcSight's cost and support.

### What are the best alternatives to Splunk and ArcSight Enterprise Security Manager (ESM)?

The best alternatives to Splunk and ArcSight Enterprise Security Manager (ESM) are Microsoft Sentinel, IBM QRadar SIEM, and LogRhythm SIEM.

| Product | G2 Rating (reviews) | Largest Segment | Pricing Insight | Top Reviewer-Cited Strength |
| --- | --- | --- | --- | --- |
| [Splunk](https://www.g2.com/products/splunk-enterprise-security/reviews) | 4.3/5 (248) | — | Expensive, but robust features and integrations | Ease of Use, Easy Integrations |
| [ArcSight Enterprise Security Manager (ESM)](https://www.g2.com/products/opentext-arcsight-enterprise-security-manager-esm/reviews) | 3.7/5 (17) | — | Expensive licensing, especially for small enterprises | Customizability |
| [Microsoft Sentinel](https://www.g2.com/products/microsoft-sentinel/reviews) | 4.4/5 (298) | Enterprise | — | — |
| [IBM QRadar SIEM](https://www.g2.com/products/ibm-ibm-qradar-siem/reviews) | 4.4/5 (338) | Enterprise | — | — |
| [LogRhythm SIEM](https://www.g2.com/products/exabeam-logrhythm-siem/reviews) | 4.2/5 (152) | Mid-Market | — | — |

### Which Security Information and Event Management (SIEM) features should I prioritize when comparing Splunk and ArcSight Enterprise Security Manager (ESM)?

Buyers comparing Splunk and ArcSight Enterprise Security Manager (ESM) should prioritize ease of use, integrations, threat detection, customization, and support quality.

- **Ease of Use:** Splunk scores 8.2, ArcSight ESM 7.9; Splunk has 15 all-time mentions for ease of use.
- **Integrations:** Splunk has 13 all-time mentions for easy integrations; ArcSight ESM is noted for less flexible third-party integrations in recent reviews.
- **Threat Detection:** Splunk has 13 all-time mentions for threat detection; ArcSight ESM is cited for its correlation engine.
- **Customization:** ArcSight ESM is frequently praised for customizability in dashboards and reporting; Splunk is also noted for customization but with 7 all-time mentions.
- **Support Quality:** Splunk scores 8.6, ArcSight ESM 6.7 on Quality of Support.

### What are the pros and cons of Splunk vs ArcSight Enterprise Security Manager (ESM)?

Splunk's headline strength is ease of use and integrations, while ArcSight Enterprise Security Manager (ESM) is most noted for its customizability.

- **Splunk strengths:** 15 all-time mentions for ease of use, 13 for easy integrations, 13 for threat detection, 12 for features, 11 for user interface, 10 for dashboard usability, 10 for log management, 9 for customer support, 8 for cybersecurity, 8 for integrations, 7 for customization, 7 for implementation ease, 7 for search efficiency, 6 for alerting, 6 for insights.
- **Splunk trade-offs:** 17 all-time mentions for being expensive, 8 for complex setup, 6 for complex implementation, 6 for complexity, 6 for difficult learning.
- **ArcSight Enterprise Security Manager (ESM) strengths:** Reviewers highlight customizability in dashboards, reporting, and correlation rules, as well as strong correlation engine and asset monitoring.
- **ArcSight Enterprise Security Manager (ESM) trade-offs:** Reviewers cite expensive licensing, complexity, steep learning curve, less flexible third-party integrations, and outdated user interface.

### Is Splunk or ArcSight Enterprise Security Manager (ESM) better for small businesses?

Splunk is a better fit for small businesses based on reviewer sentiment and segment data.

- **Splunk:** Reviewers highlight Splunk's ease of use, integrations, and support for small-scale deployments, though cost is a consideration for very small organizations.
- **ArcSight Enterprise Security Manager (ESM):** Reviewers note that ArcSight ESM's licensing and pricing model is expensive for small-scale enterprises and that implementation requires significant expertise and vendor support.

### Which Security Information and Event Management (SIEM) platform has better integrations?

Splunk is favored by reviewers for integrations over ArcSight Enterprise Security Manager (ESM).

- **Splunk:** 13 all-time mentions for easy integrations, with recent reviews highlighting integrations with firewalls, endpoint detection tools, identity providers, AWS, Azure, GCP, Palo Alto Networks, CrowdStrike, Okta, and Microsoft 365.
- **ArcSight Enterprise Security Manager (ESM):** Recent reviews note that ArcSight ESM supports integration with firewalls, proxies, web application firewalls, EDR, servers, IPS, and IDS, but is cited for less flexible third-party integrations compared to competitors.

### How do Splunk and ArcSight Enterprise Security Manager (ESM) compare on customer support?

Splunk outperforms ArcSight Enterprise Security Manager (ESM) on Quality of Support by a material margin, with scores of 8.6 versus 6.7.

- **Splunk:** Reviewers consistently praise Splunk's customer support, describing it as responsive, helpful, and proactive, with 9 all-time mentions for customer support.
- **ArcSight Enterprise Security Manager (ESM):** Reviewers describe ArcSight ESM's support as generally good and responsive, but some note delays in patching and less frequent updates.

### Which is easier to implement, Splunk or ArcSight Enterprise Security Manager (ESM)?

Splunk is rated higher for Ease of Setup than ArcSight Enterprise Security Manager (ESM), with a 1.5-point advantage (7.8 vs 6.3).

- **Splunk:** Reviewers note that while Splunk's setup can be complex and requires expertise, its documentation and support resources help streamline the process for experienced teams.
- **ArcSight Enterprise Security Manager (ESM):** Reviewers report that ArcSight ESM's implementation is complex, requires significant vendor support, and is time-consuming, especially for integrating devices and configuring use cases.

### Which product has better Threat Intelligence?

Splunk is favored for Threat Intelligence over ArcSight Enterprise Security Manager (ESM) by reviewers.

- **Splunk:** 13 all-time mentions for threat detection, with reviewers highlighting advanced threat intelligence integrations, correlation searches, and MITRE ATT&CK mapping.
- **ArcSight Enterprise Security Manager (ESM):** Reviewers cite strong correlation capabilities for threat detection, but do not specifically highlight threat intelligence integrations or features.

Alternatives

**OpenText ArcSight Enterprise Security Manager (ESM) Alternatives**

 ![Microsoft Sentinel](https://images.g2crowd.com/uploads/product/hd_favicon/a8a99a96fda235658139f710592f8a53/microsoft-sentinel.svg "Microsoft Sentinel")

[
Microsoft Sentinel
](/products/microsoft-sentinel/reviews)

 ![IBM QRadar SIEM](https://images.g2crowd.com/uploads/product/hd_favicon/7d76baae79036d41d25c4a6c46e5af43/ibm-ibm-qradar-siem.svg "IBM QRadar SIEM")

[
IBM QRadar SIEM
](/products/ibm-ibm-qradar-siem/reviews)

 ![Datadog](https://images.g2crowd.com/uploads/product/hd_favicon/1498834114/datadog.svg "Datadog")

[
Datadog
](/products/datadog/reviews)

 ![Sumo Logic](https://images.g2crowd.com/uploads/product/hd_favicon/1550622115/sumo-logic.svg "Sumo Logic")

[
Sumo Logic
](/products/sumo-logic/reviews)

**Splunk Enterprise Security Alternatives**

 ![IBM QRadar SIEM](https://images.g2crowd.com/uploads/product/hd_favicon/7d76baae79036d41d25c4a6c46e5af43/ibm-ibm-qradar-siem.svg "IBM QRadar SIEM")

[
IBM QRadar SIEM
](/products/ibm-ibm-qradar-siem/reviews)

 ![Microsoft Sentinel](https://images.g2crowd.com/uploads/product/hd_favicon/a8a99a96fda235658139f710592f8a53/microsoft-sentinel.svg "Microsoft Sentinel")

[
Microsoft Sentinel
](/products/microsoft-sentinel/reviews)

 ![LogRhythm SIEM](https://images.g2crowd.com/uploads/product/hd_favicon/2b5a539672981045aad925bbc9cc5aa0/exabeam-logrhythm-siem.svg "LogRhythm SIEM")

[
LogRhythm SIEM
](/products/exabeam-logrhythm-siem/reviews)

 ![LevelBlue USM Anywhere](https://images.g2crowd.com/uploads/product/hd_favicon/dafcd5faaef898c5bee18cd5d63cef91/levelblue-usm-anywhere%282%29.svg "LevelBlue USM Anywhere")

[
LevelBlue USM Anywhere
](/products/levelblue-usm-anywhere/reviews)

## OpenText ArcSight Enterprise Security Manager (ESM) vs Splunk Enterprise Security

When assessing the two solutions, reviewers found Splunk Enterprise Security easier to use, set up, and administer. However, reviewers felt that both vendors make it equally easy to do business overall.

- Reviewers felt that Splunk Enterprise Security meets the needs of their business better than OpenText ArcSight Enterprise Security Manager (ESM).
- When comparing quality of ongoing product support, reviewers felt that Splunk Enterprise Security is the preferred option.
- For feature updates and roadmaps, our reviewers preferred the direction of Splunk Enterprise Security over OpenText ArcSight Enterprise Security Manager (ESM).