Yotam Segev
Yotam Segev is the co-founder and CEO of the data and AI security company CyeraCyeraCyera is a data and AI security company founded in 2021 by Yotam Segev and Tamar Bar-Ilan; its platform discovers, classifies and protects enterprise sensitive data and governs what data AI agents can reach. After emerging from stealth in March 2022 it raised a series of funding rounds, including $600 million at a $12 billion valuation in June 2026.Open the full entry. He founded Cyera with Tamar Bar-Ilan in 2021 and has led it through successive funding rounds, reaching a $12 billion valuation in June 2026.
Contents7 sections
Key facts
Early Years: Talpiot and Unit 8200
2021–2022Founding Cyera
In early 2021 Segev co-founded the data security company Cyera with Bar-Ilan, becoming its CEO while Bar-Ilan became CTO. He also sits on Cyera’s board of directors.[2][3][4]
On March 29, 2022, Cyera emerged from stealth with $60 million in funding led by Sequoia CapitalSequoia CapitalSequoia Capital is a venture capital firm founded by Don Valentine in 1972, investing from the seed stage through the growth stage. Its historical investments include Apple, Cisco, Google, YouTube, Airbnb, and Stripe; in 2021 it introduced the Sequoia Capital Fund structure, which can continue to hold public securities, and in 2023 its regional businesses became independent brands and partnerships.Open the full entry, ten months after the company was formed.[5]
2024Series C and the Trail Security Acquisition
In April 2024 Cyera raised a $300 million Series C at a $1.4 billion valuation. In an interview with Ynetnews Segev said: “We are considering acquisitions and wish to enter the competitive market with considerable force.” He added: “I do not foresee selling the company anytime soon.”[3][2]
In October 2024 Cyera acquired the data loss prevention company Trail Security for $162 million. Segev said: “Cyera is determined to consolidate the siloed data security space.”[6]
June 2025Series E
In June 2025 Cyera raised a $540 million Series E at a $6 billion valuation. Segev said in the announcement: “AI runs on GPUs and data. Cyera’s focus on data security is the most critical capability the enterprise needs to adopt AI responsibly.”[7]
2026A $12 Billion Valuation and the Oasis Security Acquisition
In January 2026 Cyera raised a $400 million Series F at a $9 billion valuation. Segev said in an interview with Fortune: “Our business had legs before AI. But with AI, it’s got wings.”[8]
In an April 2026 interview with Calcalist, Segev said Cyera aimed to become “the CrowdStrikeCrowdStrikeCrowdStrike Holdings, Inc. is a cybersecurity company headquartered in Austin, Texas, co-founded in 2011 by George Kurtz and Dmitri Alperovitch. It sells subscription services for endpoint protection, threat intelligence, identity and cloud security through its cloud-native Falcon platform and a single lightweight sensor, and listed on Nasdaq in 2019 under the symbol CRWD. On July 19, 2024, a content update to its Falcon sensor caused large numbers of Windows systems around the world to crash.Open the full entry or Palo Alto NetworksPalo Alto NetworksPalo Alto Networks is an American cybersecurity company that offers network security, cloud security, security operations, identity security, and artificial intelligence security products, and provides threat intelligence, assessment, and incident response services through Unit 42.Open the full entry of data security,” building a broad platform through acquisitions, and remarked: “We didn’t plan to become the security company leading the AI revolution.”[1]
In June 2026 Cyera raised $600 million at a $12 billion valuation, and on September 3 it completed its $1 billion acquisition of the non-human identity management platform Oasis Security. Segev said of the deal: “The speed of this deal reflects a shared conviction that AI has changed the game.”[9][10]
On September 22, 2026, Cyera announced a $400 million investment from Growth Equity at Goldman SachsGoldman SachsGoldman Sachs is an American financial services group headquartered in New York whose businesses include investment banking, securities trading, asset management, and wealth management. It traces its origins to the commercial paper business Marcus Goldman founded in 1869; it listed on the New York Stock Exchange in 1999 under the ticker GS and became a bank holding company in 2008. David Solomon serves as chairman and chief executive officer.Open the full entry Alternatives. Segev said: “Global 2000 enterprises are telling us the same thing: they need to trust what AI agents can see and do before they can scale them.”[11]
Related Organizations, Websites, and Public Accounts
Cyera: Official website: https://www.cyera.com/ (opens in a new window).[4]
Sources
- Cyera raises $300M at $12B valuation, doubling its worth in five months (opens in a new window)
- Israeli cyber unicorn Cyera raises $300 million in funding (opens in a new window)
- Data Security Leader Cyera Raises $300 Million at $1.4 Billion Valuation (opens in a new window)
- About Cyera | Redefining Data Security for the Cloud Era (opens in a new window)
- Cyera Launches from Stealth with $60M to Identify, Secure, and Remediate Cloud Data Security Risks (opens in a new window)
- Cyera Acquires Trail Security for $162M, Redefining AI-Powered Data Security With Comprehensive Data Loss Prevention (opens in a new window)
- AI-Native Security Leader Cyera Doubles Customer Base in Six Months, Reaching $6 Billion Valuation (opens in a new window)
- Exclusive: Cyera CEO Yotam Segev on raising $400 million and why the stakes are getting higher (opens in a new window)
- Cyera Raises $600 Million at $12 Billion Valuation to Continue Building the Trust Layer for the AI Era (opens in a new window)
- Cyera Completes Acquisition of Oasis Security (opens in a new window)
- Cyera Announces $400 Million Investment from Goldman Sachs to Build the Trust Layer for the Agentic Enterprise (opens in a new window)