Silverfort
Agentless unified identity protection platform that extends MFA, ITDR, and access policy to legacy and unmanaged systems traditional IAM tools can't reach.
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Silverfort, founded in Tel Aviv in 2016 by Matan Fattal, Yaron Kassner, and Hed Kovetz, built an agentless architecture that enforces MFA and adaptive access policy at the authentication-protocol level (Kerberos, NTLM, LDAP, RADIUS) rather than requiring an agent on every endpoint or application. That approach lets it extend modern access controls — MFA, risk-based blocking, service-account monitoring — to legacy systems, IT/OT infrastructure, command-line tools, and file shares that conventional IAM and MFA products historically could not protect, because they had no agent-installation path.
The company has raised $222 million across four rounds, including a $116 million Series D at a $1 billion valuation in January 2024, from investors including Brighton Park Capital. It markets itself as a Unified Identity Protection platform combining identity threat detection and response (ITDR) with identity threat prevention across on-prem Active Directory, cloud identity providers, and previously unprotectable resources.
Its architecture is a genuine structural departure from agent-based MFA and IAM: instead of deploying to every server and application, Silverfort sits at the identity infrastructure layer (typically integrated with domain controllers) and can enforce policy on any authentication request that passes through, including for service accounts that traditionally have no MFA option at all.
Innovation Matrix Assessment
Rapid expansion from MFA-for-legacy-systems into full ITDR and service-account protection, with a $1B valuation reached within roughly eight years of founding.
Agentless deployment lets security teams extend MFA and monitoring to systems (legacy servers, IT/OT, command-line access, service accounts) that would otherwise require costly per-system integration work or remain unprotected entirely.
$222M raised across four rounds and a $1B valuation as of January 2024 reflect strong, sustained growth-stage investor confidence.
The agentless, protocol-level enforcement architecture is a genuinely different approach to extending MFA/access policy versus the agent- or proxy-based model most IAM and PAM tools rely on. However, Silverfort reached a $1B valuation in its 2024 Series D round (per techcrunch.com), which is the scale of an established incumbent rather than an emerging category disruptor, so this dimension is scored more conservatively.
Achieving unicorn valuation and continued Series D investment suggests validated production traction, though independent third-party efficacy benchmarks (beyond funding signals) are limited in public sources.
Protecting service accounts and legacy/unmanaged systems — a well-documented ransomware and lateral-movement vector — is likely to remain a high-priority gap as hybrid AD environments persist for years.
Why CISOs Should Care
Silverfort closes the long-standing gap where service accounts, legacy servers, and command-line access have no practical path to MFA — a gap attackers routinely exploit for lateral movement — without requiring an agent on every system.
What Makes It Different
Instead of installing agents or proxies per application, Silverfort enforces access policy directly at the authentication-protocol layer, letting it cover systems that were previously considered unprotectable by conventional IAM tooling.
The Matrix Verdict
73/100 — MEANINGFUL INNOVATOR
A genuine architectural departure from agent-based MFA with strong funding validation and a clear, well-documented problem it solves. One of the stronger candidates in this category for outranking larger incumbents — a Meaningful-to-Transformational Innovator.
Editorial Note: Claims vs. Verified Findings
Funding rounds and valuation are corroborated by multiple independent outlets (SecurityWeek, BusinessWire, Brighton Park Capital's own announcement); specific efficacy and deployment-scale claims beyond funding history are largely vendor-sourced.
Sources
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