CISO Tribune

Vendor comparison · 2 companies

Flare vs GreyNoise

Flare sells software that finds compromised identities across people, machines, and AI agents. GreyNoise sells real-time network threat intelligence built on traffic it observes at the network edge. CISO Tribune files both under Threat intelligence. 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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Up to four companies side by side.

  • Flare
  • GreyNoise
Flare vs GreyNoise: Products, Customers and Funding Compared
FlareFlare sells software that finds compromised identities across people, machines, and AI agents.flare.ioGreyNoiseGreyNoise sells real-time network threat intelligence built on traffic it observes at the network edge.greynoise.io
What it sells
  • Threat Flow[2]Agents that write finished intelligence from dark web forum chatter.
  • GreyNoise Block[5][11]Real-time blocklists for firewalls, labelled as being for small and mid-sized teams.
  • GreyNoise Platform[4]Platform to investigate any IP or CVE, catch threats hitting the edge, and turn intelligence into automated action.
Categories
Headquarters
Not stated on its pagesWashington, United States
Founded
Not stated on its pagesNot 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
Not stated on its pagesNot stated on its pages
G2 and Gartner Peer Insights
  • G2: Not stated on its pages
  • Gartner Peer Insights: Not stated on its pages
  • G2: listed, seen November 5, 2026[13]
  • Gartner Peer Insights: Not stated on its pages
Who it fits
Flare's pages address agencies that need to detect threats and criminal activity before it escalates. Fortune 50 organizations are named as users of Flare for public GitHub repositories. Flare delivers intelligence over STIX/TAXII to SIEM, SOAR or TIP systems, and writes threat briefings for executives.From its own pages, GreyNoise sells to enterprise SOCs and to government and national defense operators, with the full platform aimed at organizations of more than 2,500 employees and MSSPs. GreyNoise Block is labelled as being for small and mid-sized teams, and GreyNoise calls it ideal for organizations with fewer than 2,500 employees. GreyNoise says its intelligence plugs into SIEM, SOAR, TIP, and firewall tools that security teams already run. GreyNoise also describes threat hunting teams and vulnerability management teams as users.
Last verified
November 7, 2026September 27, 2026

Where they overlap

  • Flare and GreyNoise are both filed under Threat intelligence.

Where they differ, field by field

  • Flare's primary category is Digital risk protection; GreyNoise's is Threat intelligence.
  • Flare is also filed under Non-human identity security.
  • Flare lists Threat Flow. GreyNoise lists GreyNoise Block and GreyNoise Platform.
  • GreyNoise is headquartered in Washington, United States.

What it sells: Flare

What Threat Flow does[2]
Threat Flow agents read dark web forum chatter and cross-check sources. Threat Flow agents write finished intelligence with confidence levels and citations.

What it sells: GreyNoise

What GreyNoise Block does[5][11]
GreyNoise Block turns primary-source edge intelligence from the Global Observation Grid into blocklists for firewalls. Blocklists deploy as standard External Dynamic Lists over HTTPS. GreyNoise says lists refresh every hour. It also offers dozens of out-of-box blocklist templates.
What GreyNoise Platform does[4]
GreyNoise says its platform lets users investigate, enrich, and search GreyNoise's view of the whole internet, for one IP or thousands. Dynamic blocklists turn any GNQL query into a live, API-authenticated URL any firewall or WAF can ingest. Feeds and alerts stream events to a SIEM, SOAR, email, or webhook in real time.

Questions about Flare and GreyNoise

What do Flare and GreyNoise sell?
Flare sells Threat Flow. GreyNoise sells GreyNoise Block and GreyNoise Platform.
Are Flare and GreyNoise in the same category?
They share Threat intelligence. Flare's primary category is Digital risk protection and GreyNoise's is Threat intelligence.
Where are Flare and GreyNoise headquartered?
GreyNoise is headquartered in Washington, United States.
Who are Flare and GreyNoise sold to?
Flare's pages address agencies that need to detect threats and criminal activity before it escalates. From its own pages, GreyNoise sells to enterprise SOCs and to government and national defense operators, with the full platform aimed at organizations of more than 2,500 employees and MSSPs.

About Flare

Flare sells software that finds compromised identities across people, machines, and AI agents. Flare matches stealer logs, leaked credentials and live session cookies to employees and contractors, then revokes their access through the customer's identity provider automatically. Flare finds customers' stolen session cookies and credentials so that sessions can be reset and a fresh login forced before fraud starts. Flare watches for API keys issued by one provider, wherever they leak, so the provider can reset them before anyone abuses them. Flare surfaces every API key, token and service account in its data that is tied to a customer company, so the customer can revoke it before an attacker or a rogue agent uses it.[1]

Flare pulls indicators and techniques from dark web forums, Telegram and ransomware chatter, maps them to MITRE ATT&CK, and pushes them to a customer's SIEM. Flare delivers fresh IOCs and mapped TTPs into a SIEM, SOAR or TIP over STIX/TAXII. Threat Flow agents read dark web forum chatter, cross-check sources and write finished intelligence with confidence levels and citations. Flare writes threat briefings on the actors, campaigns and exposures that matter to a customer's sector, written for executives and backed by Flare's research team.[1]

Flare watches the forums where access, data and tools are sold, and alerts a customer when its company, vendors or executives come up. Flare tracks ransomware leak sites and alerts a customer when a vendor or partner is listed. Flare tracked over 6000 ransomware breaches in 2024. Flare automatically scans the dark, deep, and clear web for an organization's leaked data, whether it be technical data, source code, leaked credentials or secrets. Flare automatically monitors for secrets and alerts a security team to an accidental commit.[3][4]

Flare scans the clear and dark web 24/7 to detect risks like lookalike domains, leaked code and exposed cloud storage. Flare detects lookalike domains and phishing infrastructure early, and identifies applications across third-party app stores. Flare is used by Fortune 50 organizations to stop sensitive data leaks in public GitHub repos. Flare data can be brought into existing intel and case management systems, including SIEM, SOAR, Slack, Jira, and Splunk. Flare automates remediation of compromised credentials through Entra ID. Flare states that its continuous monitoring supports HIPAA Security Rule, Business Associate and Breach Notification obligations, with a documented audit trail built for OCR investigators and compliance reviews.[3][6]

Flare covers the criminal markets where EHR credentials, clinical and financial application access, and API keys are bought and sold. Flare monitors vendor domains across criminal markets so that third-party exposure surfaces before a breach notification letter. Flare surfaces exposed government data across dark web forums, Telegram channels, and stealer logs. Flare taps into underground chatter and tools used by criminal networks to support investigations. Flare finds leaked credentials and session tokens so that access can be cut off before attackers use them. Flare identifies impersonation infrastructure before it reaches customers.[6][7][8]

Flare detects leaked developer logins and tokens across GitHub, paste sites, and stealer logs. Flare detects compromised enterprise credentials early and enables automated remediation. Flare alerts a customer to exposed customer accounts before threat actors exploit them. Flare monitors hundreds of dark web sources and 58,000+ Telegram channels. Flare continuously monitors cybercrime communities across the dark web and illicit Telegram channels in multiple languages.[1][6][7][8][9][10][11]

Flare on the record

Sources

Flare full record

  1. [1]flare.ioFlare · flare.io · undated page, accessed November 7, 2026 · Tier A
  2. [2]Cut Off Attacks at the Source | Threat Intelligence - FlareFlare · undated page, accessed November 10, 2026 · Tier A
  3. [3]Brand & Third-Party Monitoring | Protect Your Digital Ecosystem - FlareFlare · undated page, accessed November 10, 2026 · Tier A
  4. [4]Data Leak Monitoring - Flare | Identity First Threat Intelligence | Unmatched Visibility into CybercrimeFlare · undated page, accessed November 10, 2026 · Tier A
  5. [5]Technical and Clear Web Exposure Monitoring - Flare | Identity First Threat Intelligence | Unmatched Visibility into CybercrimeFlare · undated page, accessed November 10, 2026 · Tier A
  6. [6]Healthcare - Flare | Identity First Threat Intelligence | Unmatched Visibility into CybercrimeFlare · undated page, accessed November 10, 2026 · Tier A
  7. [7]Government & Law Enforcement | Detect Threats Early - FlareFlare · undated page, accessed November 10, 2026 · Tier A
  8. [8]E-Commerce, Retail, & Hospitality | Detect Abuse & Fraud - FlareFlare · undated page, accessed November 10, 2026 · Tier A
  9. [9]Software & SaaS | Protect Code, Credentials, and the Cloud - FlareFlare · undated page, accessed November 10, 2026 · Tier A
  10. [10]Protect Banking & Financial Services from Fraud - FlareFlare · undated page, accessed November 10, 2026 · Tier A
  11. [11]Customer Account Takeovers & Fraud Prevention - FlareFlare · undated page, accessed November 10, 2026 · Tier A

GreyNoise full record

  1. [1]Greynoise raises 15 million in series a funding to fight cyber distractions and mass vulnerability exploitationGreyNoise · greynoise.io · published June 15, 2022 · Tier A
  2. [2]ContactGreyNoise · greynoise.io · undated page, accessed September 27, 2026 · Tier A
  3. [3]GreyNoise | Real-Time Network Threat IntelligenceGreyNoise · undated page, accessed October 25, 2026 · Tier A
  4. [4]GreyNoise Platform | Detect, Investigate & Respond FasterGreyNoise · undated page, accessed October 25, 2026 · Tier A
  5. [5]GreyNoise BlockGreyNoise · undated page, accessed October 25, 2026 · Tier A
  6. [6]Early Warning Signs of CVEs | GreyNoise IntelligenceGreyNoise · undated page, accessed October 25, 2026 · Tier A
  7. [7]Threat Hunting | GreyNoise IntelligenceGreyNoise · undated page, accessed October 25, 2026 · Tier A
  8. [8]SOC Efficiency | GreyNoise IntelligenceGreyNoise · undated page, accessed October 25, 2026 · Tier A
  9. [9]Vulnerability Prioritization | GreyNoise IntelligenceGreyNoise · undated page, accessed October 25, 2026 · Tier A
  10. [10]Incident Investigation | GreyNoise IntelligenceGreyNoise · undated page, accessed October 25, 2026 · Tier A
  11. [11]Pricing - Request a quote | GreyNoise BlockGreyNoise · undated page, accessed October 25, 2026 · Tier A
  12. [12]Compromised Asset Detection | GreyNoise IntelligenceGreyNoise · undated page, accessed November 5, 2026 · Tier A
  13. [13]GreyNoise Reviews 2026: Details, Pricing, & Features - G2G2 · undated page, accessed November 5, 2026 · Tier C

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