Cyera Co-Founders: Building the AI Data-Security Layer

Co-founders, Cyera · The category-leading data-security posture management (DSPM) operator · One of the fastest ascents to unicorn scale in Israeli cybersecurity history.

Yotam Segev and Tamar Bar-Ilan co-founded Cyera in 2021. Both are former Israeli intelligence officers whose founding thesis was that the enterprise transition to cloud data warehouses, SaaS applications, and generative AI had created a new category of security exposure — sensitive data now moved through hundreds of systems with no unified visibility of where it lived, who could access it, or how it was being processed. Cyera built the reference product for that visibility gap. Within four years of founding, the company reached a reported $6 billion valuation and is now the category-leading data-security posture management (DSPM) operator — one of the fastest ascents to unicorn-plus scale in Israeli cybersecurity history and the anchor company of the current Israeli AI-security wave.

Co-Founder Snapshot

Company	Cyera (founded 2021)
Co-founders	Yotam Segev (CEO) · Tamar Bar-Ilan (CTO)
Sector	Data security posture management (DSPM) · AI data governance · sensitive-data discovery across cloud, SaaS, and on-premises environments
Founding background	Both founders drawn from senior technical roles inside the Israeli intelligence services
Growth trajectory	Reported to have raised more than $700M across successive rounds since founding · reported $6B+ valuation reached in 2024–2025 fundraising
Investors	Reported cap-table participation from Accel, Sequoia, Redpoint, Coatue, Georgian, and additional strategic financial investors
Headquarters	New York, US (commercial HQ) · Tel Aviv, Israel (R&D)

Why Segev and Bar-Ilan matter

The AI wave is fundamentally a data wave. Foundation models are trained on data, produce outputs conditioned on data, and are deployed inside enterprises that need to control which data enters and leaves the model context. Cyera is the Israeli-founded category leader on the data-security layer of that wave — the operator most enterprises now cite when asked which single company they've bet on to solve the AI-data-governance problem.

Background

Both founders come out of the Israeli intelligence-services technical pipeline that has produced most of the founding cohorts across the Israeli cybersecurity industry, including Unit 8200. Their pre-Cyera profiles are consistent with the pattern of senior-technical intelligence-service alumni who spend a decade inside operational cyber work before moving into private-sector product development. Segev holds the CEO role; Bar-Ilan holds the CTO role. The founding-team structure is the classic Israeli cyber pattern of paired-founder CEO/CTO leadership at the top of a technical organization that grows quickly from initial founding.

The DSPM thesis

The founding insight was that enterprise data now lives in dozens or hundreds of distinct systems — cloud data warehouses (Snowflake, BigQuery, Databricks), SaaS applications (Salesforce, Workday, ServiceNow), traditional databases, unstructured file stores, and increasingly the vector databases that feed retrieval-augmented generation to foundation models. Existing security tooling did not answer the operator's first question: where is sensitive data actually sitting, and who has access to it. Data security posture management is the product category built around that question. Cyera's product architecture — agentless discovery across the enterprise data estate, automated classification of sensitive data at scale, and continuous monitoring of access patterns and data flows — became the reference architecture for the DSPM category and the template that competing vendors have subsequently followed.

The category has expanded from its original DSPM framing into the broader "AI data security" positioning as foundation-model deployment has accelerated. Enterprises building on OpenAI, Anthropic, and Google foundation-model APIs need to know which data is being sent into model context windows, which data is entering training pipelines, and which data is being returned in model outputs. Cyera's DSPM foundation was well-positioned to extend into that AI-data-governance surface, and the company's product roadmap has substantially oriented toward it.

The capital-formation trajectory

Cyera's capital-formation trajectory is one of the fastest recorded in Israeli cybersecurity. Reported successive rounds — Series A (2022), Series B (2022–2023), Series C (2024), Series D (2024), Series E (2025) — pushed cumulative reported funding above $700 million and the reported valuation past $6 billion within four years of founding. The investor set — Accel, Sequoia, Redpoint, Coatue, Georgian, and additional participants — spans the largest US venture platforms and multiple crossover funds active in growth-stage enterprise software.

Where Cyera sits in the Israeli AI-security wave

Cyera is the anchor of a cohort of Israeli-founded AI-security companies that includes Pillar Security, Lasso Security, Prompt Security, Adaptive Shield (acquired by CrowdStrike in November 2024 for approximately $300M), Rezonate, and additional operators. The cohort's shared founding thesis is that foundation-model deployment inside enterprises requires purpose-built security infrastructure that legacy cybersecurity vendors do not provide. Cyera's specific position inside that cohort is the data-security layer — where sensitive data sits and moves. Adjacent operators cover the AI-application-security layer (Pillar), the AI-runtime-security layer (Lasso), and additional adjacent slices.

Watch points

The next capital round or strategic transaction — Cyera has been reported in acquisition and IPO speculation across successive quarters.
Category consolidation — whether Cyera acquires adjacent players in the Israeli AI-security wave, and whether the broader DSPM-to-AI-security category consolidates around Cyera as the platform vendor.
Foundation-model vendor partnerships — Cyera's positioning inside the OpenAI, Anthropic, and Google enterprise-partner ecosystems.
Regulatory tailwinds — the accelerating regulatory pressure on enterprise AI-data governance (EU AI Act enforcement, US state-level data-privacy regulation) as a demand driver.

Why Yotam and Tamar matter

Every enterprise adopting foundation-model AI needs an answer to the data-governance question. Cyera has emerged as the category-leading Israeli-founded answer to that question — the operator whose product architecture and market position now define the DSPM-to-AI-security category itself. Segev and Bar-Ilan built the company that took the category from founding to reference-standard in under four years. Their trajectory is the current best case in the Israeli AI-security wave and one of the fastest ascents in Israeli cybersecurity history.

Sources

Cyera company disclosures on funding rounds and product releases. Reporting in Calcalist, Globes, Haaretz, and The Marker on Cyera's commercial trajectory. Reuters, Bloomberg, TechCrunch, and Wall Street Journal coverage of successive Cyera fundraises and the broader Israeli AI-security wave. DSPM category analysis in Gartner, Forrester, and IDC published research.

Related Olam Coverage

Israeli AI-Security Wave — Current

Yotam Segev & Tamar Bar-Ilan (Cyera) · Dor Sarig & Ziv Karliner (Pillar Security) · Elad Schulman (Lasso Security)