CISO Tribune

Vendor comparison · 2 companies

Prompt Security vs Skyflow

Prompt Security offers protection for both employee use of AI tools and the apps an organization builds. Skyflow sells a data privacy vault to isolate, protect, and govern sensitive data. CISO Tribune files both under AI model and agent security. 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.

  • Prompt Security
  • Skyflow
Prompt Security vs Skyflow: Products, Customers and Funding Compared
Prompt SecurityPrompt Security offers protection for both employee use of AI tools and the apps an organization builds.prompt.securitySkyflowSkyflow sells a data privacy vault to isolate, protect, and govern sensitive data.skyflow.com
What it sells
  • Prompt Fuzzer[4]An open source tool for AI vulnerability assessment.
  • Fintech Data Privacy Vault[9]A data privacy vault for fintech use cases.
Categories
Headquarters
Not stated on its pagesPalo Alto, United States[2]
Founded
2023[1]2019[2]
Ownership and funding
Owned by SentinelOne since 2025[3][7][8][10]Privately held[5][6]
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: listed, seen November 10, 2026[10]
  • 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
Not written yetFintech Data Privacy Vault is designed for fintech use cases. Skyflow healthcare data sharing is aimed at patients, care providers, and public health officials. Skyflow sells to teams that deploy AI applications in production and need dynamic access controls on PII, PHI, and PCI data. Skyflow also addresses organisations that must meet data residency standards such as GDPR, DPDP, and PIPL.
Last verified
September 27, 2026September 27, 2026

Where they overlap

  • Prompt Security and Skyflow are both filed under AI model and agent security.

Where they differ, field by field

  • Prompt Security's primary category is AI firewalls and guardrails; Skyflow's is Encryption, tokenization and key management.
  • Prompt Security is also filed under Workforce AI usage security. Skyflow is also filed under Privacy management.
  • Prompt Security lists Prompt Fuzzer. Skyflow lists Fintech Data Privacy Vault.
  • Skyflow is headquartered in Palo Alto, United States.
  • Prompt Security was founded in 2023. Skyflow was founded in 2019.
  • Prompt Security is owned by SentinelOne, since 2025. Skyflow is privately held.

What it sells: Prompt Security

What Prompt Fuzzer does[4]
Prompt Fuzzer is listed under AI Security Tools on the Prompt Security site. The site describes it as an open source tool for AI vulnerability assessment.

What it sells: Skyflow

What Fintech Data Privacy Vault does[9]
Fintech Data Privacy Vault includes pre-built integrations with third-party service providers such as Alloy, Experian, and Visa. Skyflow offers client-side SDKs for iOS, Android, and JavaScript that let developers collect and tokenize data.

Questions about Prompt Security and Skyflow

What do Prompt Security and Skyflow sell?
Prompt Security sells Prompt Fuzzer. Skyflow sells Fintech Data Privacy Vault.
Are Prompt Security and Skyflow in the same category?
They share AI model and agent security. Prompt Security's primary category is AI firewalls and guardrails and Skyflow's is Encryption, tokenization and key management.
Where are Prompt Security and Skyflow headquartered?
Skyflow is headquartered in Palo Alto, United States.
When were Prompt Security and Skyflow founded?
Prompt Security was founded in 2023. Skyflow was founded in 2019.
Who owns Prompt Security and Skyflow?
Prompt Security is owned by SentinelOne, since 2025. Skyflow is privately held.
Who are Prompt Security and Skyflow sold to?
Fintech Data Privacy Vault is designed for fintech use cases.

About Prompt Security

Prompt Security offers protection for both employee use of AI tools and the apps an organization builds. Prompt Security continuously tracks prompts per day in organizations of 500 to 1,000 employees.[4][5]

Prompt Security holds that securing agentic AI is fundamentally different from securing traditional software. Prompt Security states that agents act autonomously, call tools and reason over untrusted input, so prompt injection, identity and runtime behavior have to be governed in real time and not only at the perimeter.

Prompt Security provides a security skill suite for OpenClaw, NanoClaw and Hermes agents.[6]

Prompt Security provides a tool that tracks and analyzes OpenClaw deployments across an organization. Prompt Security provides a tool that tests and hardens a system prompt against dynamic LLM-based attacks.[4][9]

Prompt Security publishes news, research, tools and analysis for security teams responding to AI threats. Prompt Security describes an AI gateway as a centralized layer between an organization's users or applications and the AI models or services they call. An AI gateway, as Prompt Security describes it, lets security teams monitor, control and secure that traffic from one place instead of instrumenting every application separately.[4]

Prompt Security curates an interactive, continuously updated directory of 471 companies building security for agentic AI, organized across 14 functional categories. Both pure-play startups and dedicated AI-security lines from larger vendors are in scope for the Prompt Security directory. Entries in the Prompt Security directory are compiled from vendor websites, product documentation, funding announcements, public company registries and analyst coverage. Placement in the Prompt Security directory reflects publicly stated capabilities, not vendor marketing tiers. Category definitions and threat coverage in the Prompt Security directory are mapped against established, independent frameworks for AI and LLM security. The full dataset behind the Prompt Security directory is open and machine-readable.[2][4][5][6][9]

Prompt Security on the record

Sources

Prompt Security full record

  1. [1]Prompt security partners with f5 to secure genai applications with a firewall for ai 302131373Prompt Security via PR Newswire · prnewswire.com · published April 30, 2024 · Tier A
  2. [2]Securing ai promptSentinelOne · sentinelone.com · undated page, accessed September 27, 2026 · Tier A
  3. [3]Sentinelone completes acquisition of prompt securitySentinelOne via The Globe and Mail · theglobeandmail.com · published September 5, 2025 · Tier A
  4. [4]Prompt Security | From SentinelOnePrompt Security · undated page, accessed October 27, 2026 · Tier A
  5. [5]AI Security | AI Glossary | Prompt SecurityPrompt Security · undated page, accessed October 27, 2026 · Tier A
  6. [6]ClawSec: A Security Skill Suite for OpenClaw AgentsPrompt Security · undated page, accessed October 27, 2026 · Tier A
  7. [7]AI Security Startups Map — Agentic AI Vendors by CategoryPrompt Security · undated page, accessed October 27, 2026 · Tier A
  8. [8]About this Map & Methodology — AI Security Startups MapPrompt Security · undated page, accessed October 27, 2026 · Tier A
  9. [9]OneClaw DashboardPrompt Security · undated page, accessed November 10, 2026 · Tier A
  10. [10]Prompt Security Pros and Cons | User Likes & DislikesG2 · undated page, accessed November 10, 2026 · Tier C

Skyflow full record

  1. [1]skyflow.comSkyflow · skyflow.com · undated page, accessed September 27, 2026 · Tier A
  2. [2]5caff613 773d 466d 9876 cd803811d30bSkyflow · jobs.ashbyhq.com · undated page, accessed September 27, 2026 · Tier A
  3. [3]Data privacy vault skyflow secures 30 million in new fundingFinovate · finovate.com · published April 23, 2024 · Tier B
  4. [4]Secure PII and Sensitive Data | SkyflowSkyflow · undated page, accessed October 28, 2026 · Tier A
  5. [5]Skyflow | Runtime AI Data ControlSkyflow · undated page, accessed October 28, 2026 · Tier A
  6. [6]Skyflow for HealthcareSkyflow · undated page, accessed October 28, 2026 · Tier A
  7. [7]Skyflow for PaymentsSkyflow · undated page, accessed October 28, 2026 · Tier A
  8. [8]GenAI Data Privacy and LLM Data Security | SkyflowSkyflow · undated page, accessed October 28, 2026 · Tier A
  9. [9]Fintech Data Privacy Vault - SkyflowSkyflow · undated page, accessed October 28, 2026 · Tier A
  10. [10]Skyflow for AgentsSkyflow · undated page, accessed November 10, 2026 · Tier A
  11. [11]Agentic CommerceSkyflow · undated page, accessed November 10, 2026 · Tier A
  12. [12]Skyflow for GleanSkyflow · undated page, accessed November 10, 2026 · Tier A
  13. [13]Skyflow's Healthcare Data Privacy VaultSkyflow · undated page, accessed November 10, 2026 · Tier A
  14. [14]Meet GDPR Requirements for Data Residency | SkyflowSkyflow · undated page, accessed November 10, 2026 · Tier A

Spot a factual error? Request a correction.