CISO Tribune

Vendor comparison · 2 companies

Corelight vs Fidelis

Corelight sells the Open NDR Platform, which transforms network data into evidence. Fidelis sells a range of solutions that includes XDR, NDR, EDR and CNAPP, offered for proactive cyber defense. CISO Tribune files both under Network detection and response. This page sets the two records side by side: what each sells, where it is based, who owns and funds it, the customers it names and its recent news, each fact numbered to its source.

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  • Corelight
  • Fidelis
Corelight vs Fidelis: Products, Customers and Funding Compared
CorelightCorelight sells the Open NDR Platform, which transforms network data into evidence.corelight.comFidelisFidelis sells a range of solutions that includes XDR, NDR, EDR and CNAPP, offered for proactive cyber defense.fidelissecurity.com
What it sells
  • Investigator[1][4][9][10][12][13][15][18]A SaaS-based NDR platform for investigations. It uses Agentic Triage playbooks to triage alerts.
  • Corelight Sensors[8][12][13]Sensors that capture a copy of traffic out-of-band and turn it into network evidence with Zeek.
  • Smart PCAP[1][4][12]Links Zeek logs, detections and extracted files to only the packets needed for investigations.
  • AI/ML detections[8]A subscription-based module of AI/ML detections that can be purchased with Corelight Sensors.
  • Threat Intelligence[4][8][13]A licensed feature for Corelight Sensors and Investigator.
  • Cloud Sensors[14]Corelight sensors for cloud networks, available for AWS, GCP and Azure.
  • Fidelis Elevate[3][4]Fidelis Elevate is an XDR platform. Fidelis Elevate correlates threats across network, endpoint and cloud.
  • Fidelis Network[1][3][4]Fidelis Network is an NDR platform with network traffic analysis and network behaviour anomaly detection.
  • Fidelis Endpoint[1][3][4]Fidelis Endpoint is an EDR solution that gives hands-on control to pinpoint and eradicate threats.
  • Fidelis Deception[1][3][4]Fidelis Deception delivers alerts and events from decoys, AD credentials, poisoned data and suspicious traffic.
  • Fidelis Active Directory Intercept[1][3][4]Fidelis Active Directory Intercept combines an AD-aware NDR platform with Active Directory deception technology.
Categories
Headquarters
San Francisco, United States[3]Not stated on its pages
Founded
2016Not stated on its pages
Ownership and funding
Not stated on its pagesNot stated on its pages
Named customers
Not stated on its pagesNot stated on its pages
Recent news
  • October 6, 2026Corelight announced the establishment of Corelight Canada, a standalone entity intended to work more closely with customers, partners and public sector organizations in Canada.[17]
  • July 27, 2026Corelight announced the appointment of Amanda Berger as its Chief Customer Officer.[5]
  • June 9, 2026Corelight announced that its Open NDR Platform, including Investigator and Hosted Fleet Manager, was listed on the FedRAMP Marketplace as FedRAMP In Process at the Class C (Moderate) level.[18]
  • June 9, 2026Corelight announced it has reached FedRAMP In Process status.[6]
Not stated on its pages
G2 and Gartner Peer Insights
  • G2: listed, seen November 5, 2026[7]
  • Gartner Peer Insights: Not stated on its pages
  • G2: Not stated on its pages
  • Gartner Peer Insights: Not stated on its pages
Who it fits
From its own pages, Corelight sells mainly to SOC teams that want network evidence for detection, investigation and threat hunting. Corelight describes customers extending visibility across hybrid and multi-cloud environments. Customer examples on its pages include a global beauty retailer protecting point-of-sale terminals and a major U.S mortgage lender with data centers and multi-cloud workloads in AWS and Azure.A hospital is named as a customer that uses Fidelis Security for network security. Fidelis describes continuous monitoring and protection for legal and healthcare data. Fidelis Halo is a platform for protection and compliance across cloud, hybrid and on-premises workloads. Fidelis Endpoint provides EDR protection on-premises and in the cloud.
Last verified
September 27, 2026November 6, 2026

Where they overlap

  • Corelight and Fidelis are both filed under Network detection and response.

Where they differ, field by field

  • Corelight's primary category is Network detection and response; Fidelis's is EDR and XDR.
  • Corelight is also filed under Network visibility and traffic brokering. Fidelis is also filed under Deception technology and Cloud-native application protection (CNAPP).
  • Corelight lists Investigator, Corelight Sensors, Smart PCAP, AI/ML detections, Threat Intelligence and 1 more. Fidelis lists Fidelis Elevate, Fidelis Network, Fidelis Endpoint, Fidelis Deception and Fidelis Active Directory Intercept.
  • Corelight is headquartered in San Francisco, United States.
  • Corelight was founded in 2016.

What it sells: Corelight

What Investigator does[1][4][9][10][12][13][15][18]
Investigator is Corelight's SaaS-based NDR platform that streamlines complex investigations. Agentic Triage uses transparent, expert-written playbooks. SIEM Verdict Export sends triage verdicts, reasoning chains and evidence links into a SIEM.
What Corelight Sensors does[8][12][13]
The sensor captures a copy of all traffic out-of-band, then deduplicates and cleans the data. Powered by Zeek, it performs deep protocol parsing across 70+ data types. The evidence is routed to Investigator, a SIEM or a data lake.
What Smart PCAP does[1][4][12]
Corelight Smart PCAP links Zeek logs, detections and extracted files to only the packets needed for investigations. Corelight says it lets teams store packets longer and find them faster.
What AI/ML detections does[8]
AI/ML detection is a subscription-based module that can be purchased with Corelight Sensors. It can be deployed across air-gapped, hybrid, cloud or multicloud environments. Models are enabled, managed and tuned through Fleet Manager. Many detections run directly on-sensor with no cloud dependency.
What Threat Intelligence does[4][8][13]
Threat Intelligence is a licensed feature for Corelight Sensors and Investigator. It is supported on all sensor options. It is managed through Fleet Manager or the sensor's Threat Intelligence framework.
What Cloud Sensors does[14]
Corelight Cloud Sensors are available for AWS, GCP and Azure. Corelight supports AWS, Azure and GCP native packet mirroring, and third-party packet brokers.

What it sells: Fidelis

What Fidelis Elevate does[3][4]
Fidelis Elevate is an XDR platform. Fidelis Elevate correlates threats across network, endpoint and cloud. Fidelis Elevate automates detection and response workflows.
What Fidelis Network does[1][3][4]
Fidelis Network is an NDR platform with network traffic analysis and network behaviour anomaly detection across all ports and protocols. Fidelis Network retains metadata for up to 360 days to support investigations and compliance.
What Fidelis Deception does[1][3][4]
Fidelis Deception delivers alerts and events from decoys, AD credentials, poisoned data and suspicious traffic. Fidelis Deception monitors IoT and cloud resources as deceptive objects.
What Fidelis Active Directory Intercept does[1][3][4]
Fidelis Active Directory Intercept combines an AD-aware NDR platform, integrated Active Directory deception technology and foundational AD log and event monitoring. Fidelis Active Directory Intercept monitors for suspicious changes and privilege escalation attempts.

Questions about Corelight and Fidelis

What do Corelight and Fidelis sell?
Corelight sells Investigator, Corelight Sensors, Smart PCAP, AI/ML detections, Threat Intelligence and 1 more. Fidelis sells Fidelis Elevate, Fidelis Network, Fidelis Endpoint, Fidelis Deception and Fidelis Active Directory Intercept.
Are Corelight and Fidelis in the same category?
They share Network detection and response. Corelight's primary category is Network detection and response and Fidelis's is EDR and XDR.
Where are Corelight and Fidelis headquartered?
Corelight is headquartered in San Francisco, United States.
When were Corelight and Fidelis founded?
Corelight was founded in 2016.
Who are Corelight and Fidelis sold to?
From its own pages, Corelight sells mainly to SOC teams that want network evidence for detection, investigation and threat hunting. A hospital is named as a customer that uses Fidelis Security for network security.
What have Corelight and Fidelis announced recently?
October 6, 2026: Corelight announced the establishment of Corelight Canada, a standalone entity intended to work more closely with customers, partners and public sector organizations in Canada.

About Corelight

Corelight sells the Open NDR Platform, which transforms network data into evidence. Corelight says that evidence powers AI-driven detection and expert-authored workflows.

Corelight sensors capture a copy of all traffic out-of-band. The sensor then deduplicates and cleans the data, discarding redundant multicast traffic. Powered by Zeek, the sensor performs deep protocol parsing across 70+ data types. The resulting evidence is routed to Corelight Investigator, a SIEM, or a data lake for long-term forensics.[9]

Investigator is Corelight's SaaS-based NDR platform. Corelight says it streamlines complex investigations by eliminating repetitive review steps and enables up to 10x faster triage. Agentic Triage uses transparent, expert-written playbooks to follow consistent triage logic for every investigation. SIEM Verdict Export sends every triage verdict, including the reasoning chain, evidence links and recommended next steps, directly into the customer's SIEM. Investigator also offers host isolation, IP blocking and identity actions through integrated EDR, firewall and identity provider workflows.[1][10]

Corelight fuses machine learning, behavioral analytics and curated signatures in its threat detection. AI/ML detection is a subscription-based module that can be purchased with Corelight Sensors, and AI/ML models are enabled, managed and tuned through Fleet Manager. Many of these detections run directly on-sensor, with no cloud dependency. Threat Intelligence is a licensed feature for Corelight Sensors and Investigator, and it is supported on all sensor options. Corelight Smart PCAP links Zeek logs, detections and extracted files to only the packets needed for investigations.[8][11][12][13]

For cloud environments, Corelight Cloud Sensors are available for AWS, GCP and Azure. Corelight supports AWS, Azure and GCP native packet mirroring, and third-party packet brokers. Performance and Asset Visibility is a Corelight Open NDR module that passively extracts asset classification and network performance telemetry from traffic the sensors are already collecting.[14][15]

Corelight also sells services. Corelight says it can provide a resident engineer to work alongside a customer's team, and services can be purchased standalone or bundled with the platform. Corelight describes integrations with Splunk Enterprise Security and Splunk SOAR, and with Microsoft Defender, Microsoft Sentinel and Microsoft Entra ID.[1][2][10][12][14][16]

Corelight on the record

Sources

Corelight full record

  1. [1]All productsCorelight · corelight.com · undated page, accessed September 27, 2026 · Tier A
  2. [2]About corelightCorelight · corelight.com · undated page, accessed September 27, 2026 · Tier A
  3. [3]H i g growth partners invests in corelights 75m series d financingH.I.G. Capital · hig.com · published September 3, 2021 · Tier C
  4. [4]Corelight | Evidence-Based NDR & Threat Hunting PlatformCorelight · undated page, accessed October 24, 2026 · Tier A
  5. [5]Corelight Welcomes Veteran Customer Advocate Amanda Berger as Chief Customer OfficerCorelight · published July 27, 2026 · Tier A
  6. [6]Corelight Achieves FedRAMP In Process Certification, Advancing Network Detection and Response for Federal Government AgenciesCorelight · published June 9, 2026 · Tier A
  7. [7]Corelight Reviews 2026: Details, Pricing, & Features - G2G2 · undated page, accessed October 24, 2026 · Tier C
  8. [8]AI/ML Detections: Transparent, Evidence-Based NDR | CorelightCorelight · undated page, accessed November 5, 2026 · Tier A
  9. [9]Network Visibility: Complete Visibility for Security Operations | CorelightCorelight · undated page, accessed November 5, 2026 · Tier A
  10. [10]Investigator: Agentic AI Triage for NDR | CorelightCorelight · undated page, accessed November 5, 2026 · Tier A
  11. [11]AI-Powered Threat Detection Platform | CorelightCorelight · undated page, accessed November 5, 2026 · Tier A
  12. [12]Intrusion Detection System (IDS) Powered by Suricata | CorelightCorelight · undated page, accessed November 5, 2026 · Tier A
  13. [13]Cyber Threat Intelligence for Open NDR | CorelightCorelight · undated page, accessed November 5, 2026 · Tier A
  14. [14]Cloud Solutions | CorelightCorelight · undated page, accessed November 5, 2026 · Tier A
  15. [15]Performance and Asset Visibility | CorelightCorelight · undated page, accessed November 5, 2026 · Tier A
  16. [16]Professional & Consulting Services | CorelightCorelight · undated page, accessed November 5, 2026 · Tier A
  17. [17]Corelight establishes Corelight CanadaCorelight · published October 6, 2026 · Tier A
  18. [18]Corelight Achieves FedRAMP In Process Certification, Advancing Network Detection and Response for Federal Government AgenciesPR Newswire · published June 9, 2026 · Tier A

Fidelis full record

  1. [1]fidelissecurity.comFidelis Security · fidelissecurity.com · undated page, accessed November 6, 2026 · Tier A
  2. [2]AboutFidelis Security · fidelissecurity.com · undated page, accessed November 6, 2026 · Tier A
  3. [3]Fidelis Security: Detect, Investigate, Hunt, Respond 9x FasterFidelis Security · undated page, accessed November 10, 2026 · Tier A
  4. [4]Top Cybersecurity Solutions | Fidelis SecurityFidelis Security · undated page, accessed November 10, 2026 · Tier A
  5. [5]Trust Center - Commitment to Your Security | Fidelis SecurityFidelis Security · undated page, accessed November 10, 2026 · Tier A
  6. [6]Service & Support | Fidelis SecurityFidelis Security · undated page, accessed November 10, 2026 · Tier A

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