CISO Tribune

Vendor comparison · 2 companies

Fable Security vs Keepnet Labs

Fable Security sells human risk management software for the AI threat era, covering phishing and vishing simulation, security awareness training, and employee risk scoring with interventions. Keepnet Labs sells security awareness training and multi-channel phishing simulations. CISO Tribune files both under Human risk management. 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.

Change the companies

Up to four companies side by side.

  • Fable Security
  • Keepnet Labs
Fable Security vs Keepnet Labs: Products, Customers and Funding Compared
Fable SecurityFable Security sells human risk management software for the AI threat era, covering phishing and vishing simulation, security awareness training, and employee risk scoring with interventions.fablesecurity.comKeepnet LabsKeepnet Labs sells security awareness training and multi-channel phishing simulations.keepnetlabs.com
What it sells
  • Human risk management[5][6]Scores every employee from tools the customer already owns.
  • Phishing Simulator[1][2][7][9]Runs email phishing simulations.
  • Vishing assessment[15]Live calls from experienced social engineers to test verification.
Categories
Headquarters
San Francisco, United States[4]London, United Kingdom
Founded
2024[2]2017[1]
Ownership and funding
Privately held[6][15][18]Not stated on its pages
Named customers
Not stated on its pagesNot stated on its pages
Recent news
  • September 16, 2026Fable Security announced general availability of Briefing Agent, an AI agent for turning emerging threats and new policies into targeted employee interventions.[14]
Not stated on its pages
G2 and Gartner Peer Insights
  • G2: listed, seen October 26, 2026[13]
  • Gartner Peer Insights: Not stated on its pages
Who it fits
From its own pages, Fable Security sells mainly to enterprise organizations facing AI-powered social engineering. Fable Security connects to identity, email, endpoint, SASE, HRIS, and collaboration tools, so it suits organizations that already run such stacks. It also offers an on-premises directory option for organizations not fully in the cloud.Keepnet Labs says any team that takes calls can be included in a vishing assessment, with the help desk requested most. Keepnet Labs organises published customer numbers by sector. Keepnet Labs prices its plans per employee per month, billed annually, and customers can buy through a Keepnet partner. Keepnet Labs lists hosting regions of the UK, EU, US, Canada, the UAE and Türkiye.
Last verified
September 27, 2026September 27, 2026

Where they overlap

  • Human risk management is the primary category of both Fable Security and Keepnet Labs.

Where they differ, field by field

  • Keepnet Labs is also filed under Security awareness training, Threat intelligence and Incident response and forensics.
  • Fable Security lists Human risk management. Keepnet Labs lists Phishing Simulator and Vishing assessment.
  • Fable Security is headquartered in San Francisco, United States. Keepnet Labs is headquartered in London, United Kingdom.
  • Fable Security was founded in 2024. Keepnet Labs was founded in 2017.
  • Fable Security is privately held.

How they differ

CISO Tribune files both Fable Security and Keepnet Labs under Human risk management as the primary category, and Keepnet Labs is also filed under Security awareness training, Threat intelligence, and Incident response and forensics. Keepnet Labs sells security awareness training and multi-channel phishing simulations, including voice, SMS, email, QR code, and callback simulations.

Fable Security is headquartered in San Francisco, United States, was founded in 2024, and is privately held. Keepnet Labs is headquartered in London, United Kingdom, and was founded in 2017. Keepnet Labs offers hosting in the UK, EU, US, Canada, the UAE, or Türkiye, and prices its plans per employee per month, billed annually. Fable Security also offers an on-premises directory option for organizations not fully in the cloud.

Fable Security says it sells mainly to enterprise organizations facing AI-powered social engineering. Keepnet Labs names Whitbread and Koton among the customers it describes. On September 16, 2026, Fable Security announced general availability of Briefing Agent, an AI agent for turning emerging threats and new policies into targeted employee interventions.

What it sells: Fable Security

What Human risk management does[5][6]
Fable Security scores every employee from the tools an organization already owns. It acts on the riskiest patterns automatically.

What it sells: Keepnet Labs

What Phishing Simulator does[1][2][7][9]
Phishing Simulator runs email phishing simulations. Phishing Simulator provides templates across languages and difficulty levels.
What Vishing assessment does[15]
A Keepnet vishing assessment is a set of live calls from experienced social engineers to employees, using pretexts the customer approves. Senior Keepnet social engineers hold the calls themselves, with no AI voices.

Questions about Fable Security and Keepnet Labs

What do Fable Security and Keepnet Labs sell?
Fable Security sells Human risk management. Keepnet Labs sells Phishing Simulator and Vishing assessment.
Are Fable Security and Keepnet Labs in the same category?
Yes. Human risk management is the primary category of both on CISO Tribune.
Where are Fable Security and Keepnet Labs headquartered?
Fable Security is headquartered in San Francisco, United States. Keepnet Labs is headquartered in London, United Kingdom.
When were Fable Security and Keepnet Labs founded?
Fable Security was founded in 2024. Keepnet Labs was founded in 2017.
Who owns Fable Security and Keepnet Labs?
Fable Security is privately held.
Who are Fable Security and Keepnet Labs sold to?
From its own pages, Fable Security sells mainly to enterprise organizations facing AI-powered social engineering. Keepnet Labs says any team that takes calls can be included in a vishing assessment, with the help desk requested most.
What have Fable Security and Keepnet Labs announced recently?
September 16, 2026: Fable Security announced general availability of Briefing Agent, an AI agent for turning emerging threats and new policies into targeted employee interventions.

About Fable Security

Fable Security sells human risk management software for the AI threat era, covering phishing and vishing simulation, security awareness training, and employee risk scoring with interventions.[1][5]

Fable Security says AI-written phishing, cloned voices, and deepfakes slip past the red flags training taught. The home page says AI writes flawless phishing, clones a CFO's voice, and joins video calls as a deepfake. Fable Security also says one-size-fits-all training ignores how people actually behave, and that legacy content takes weeks to ship while new AI attack patterns spread in days.[5][11]

The simulation part runs role-specific phishing, voice, and deepfake simulations and feeds every result into the risk picture. The training part sends branded, targeted briefings on new threats within hours.

Fable Security describes a loop in which it picks up risky behavior from the security stack and from phishing, vishing, and deepfake simulations. The Fable Risk Engine scores risk for each employee and cohort and shows the behaviors behind every score. People who need help get a short, personalized intervention in Slack, Teams, or email. Fable then measures whether behavior and risk changed and re-intervenes where they did not.

On deployment, Fable Security says it pulls signals from identity, email, endpoint, SASE, HRIS, and collaboration tools without new agents on employee devices. Fable Security says that when CrowdStrike flags a compromised credential, Fable triggers an automated password rotation.

For behavior change, Fable Security says it customizes AI videos, text-based nudges, and two-way chats based on risk details and the customer's policy. For emerging threats, the security awareness training page describes a Briefing agent that drafts a targeted briefing from a threat report, alert, or policy.[5][12][13][17]

Fable Security also addresses AI use. It says Fable discovers unsanctioned AI use through integrations with IAM, DLP, and browser-based tools. The risk reporting page says Fable generates explainable human risk profiles using behavioral signals instead of static metrics, and ingests written policies and maps them to employee behaviors.[8][9]

Its training page says it delivers training for frameworks and regulations such as PCI-DSS, HIPAA, and NIST.[3][5][7][8][9][10][11][12][13][16][17]

Fable Security on the record

Sources

Fable Security full record

  1. [1]Fable security recognized as leader in human risk management with two award wins from fortune and techcrunch 302600527Fable Security via PR Newswire · prnewswire.com · published October 31, 2025 · Tier A
  2. [2]Fable security raises 31 million for human risk management platformSecurityWeek · securityweek.com · published July 29, 2025 · Tier B
  3. [3]fablesecurity.comFable Security · fablesecurity.com · published August 17, 2026 · Tier A
  4. [4]Fable security dashboard quantifies human security risksMSSP Alert · msspalert.com · published October 22, 2025 · Tier B
  5. [5]Home - Fable SecurityFable Security · undated page, accessed October 25, 2026 · Tier A
  6. [6]The modern human risk management platform | Fable SecurityFable Security · undated page, accessed October 25, 2026 · Tier A
  7. [7]AI-powered anti-phishing training & solutions for employees | Fable SecurityFable Security · undated page, accessed October 25, 2026 · Tier A
  8. [8]Report on human risk - Fable SecurityFable Security · undated page, accessed October 25, 2026 · Tier A
  9. [9]Enable secure AI use - Fable SecurityFable Security · undated page, accessed October 25, 2026 · Tier A
  10. [10]Strengthen phishing resilience - Fable SecurityFable Security · undated page, accessed October 25, 2026 · Tier A
  11. [11]Build security-aware teams - Fable SecurityFable Security · undated page, accessed October 25, 2026 · Tier A
  12. [12]Shape behavior directly - Fable SecurityFable Security · undated page, accessed October 25, 2026 · Tier A
  13. [13]Respond to emerging threats - Fable SecurityFable Security · undated page, accessed October 25, 2026 · Tier A
  14. [14]Fable Launches Briefing Agent to Turn Emerging Threats Into Targeted Employee Interventions in MinutesBusiness Wire · published September 16, 2026 · Tier A
  15. [15]Fable Security Human Risk Platform Reviews & Product Details - G2G2 · undated page, accessed October 25, 2026 · Tier C
  16. [16]Integrations - Fable SecurityFable Security · undated page, accessed November 3, 2026 · Tier A
  17. [17]Security Awareness Training - Fable SecurityFable Security · undated page, accessed November 3, 2026 · Tier A
  18. [18]Fable Security Reviews, Ratings & Features 2026 | Gartner Peer InsightsGartner Peer Insights · undated page, accessed November 3, 2026 · Tier C

Keepnet Labs full record

  1. [1]About usKeepnet Labs · keepnetlabs.com · published July 23, 2024 · Tier A
  2. [2]Phishing simulatorKeepnet Labs · keepnetlabs.com · published September 24, 2026 · Tier A
  3. [3]Threat intelligenceKeepnet Labs · keepnetlabs.com · published March 19, 2025 · Tier A
  4. [4]Phishing incident responseKeepnet Labs · keepnetlabs.com · published August 25, 2026 · Tier A
  5. [5]Privacy policyKeepnet Labs · doc.keepnetlabs.com · undated page, accessed September 27, 2026 · Tier A
  6. [6]About Us | KeepnetKeepnet Labs · undated page, accessed October 26, 2026 · Tier A
  7. [7]Human Risk Management Platform for Cybersecurity | KeepnetKeepnet Labs · undated page, accessed October 26, 2026 · Tier A
  8. [8]Vishing as a Service: Managed Live-Human Calls - KeepnetKeepnet Labs · undated page, accessed October 26, 2026 · Tier A
  9. [9]Security Awareness Training Pricing & Plans | KeepnetKeepnet Labs · undated page, accessed October 26, 2026 · Tier A
  10. [10]Customer Case Studies: Phishing Simulation Results | KeepnetKeepnet Labs · undated page, accessed October 26, 2026 · Tier A
  11. [11]Cybersecurity Platform Features & Benefits: User Management & Automation | KeepnetKeepnet Labs · undated page, accessed October 26, 2026 · Tier A
  12. [12]Integrations - KeepnetKeepnet Labs · undated page, accessed October 26, 2026 · Tier A
  13. [13]Keepnet Labs Reviews 2026: Details, Pricing, & Features - G2G2 · undated page, accessed October 26, 2026 · Tier C
  14. [14]Voice delivery Integration - KeepnetKeepnet · undated page, accessed November 10, 2026 · Tier A
  15. [15]Vishing Assessment: Social Engineering by Phone | KeepnetKeepnet · undated page, accessed November 10, 2026 · Tier A

Spot a factual error? Request a correction.