Tamar Bar-Ilan

Tamar Bar-Ilan is a co-founder and CTO at Cyera[1][2], a cloud data security company[1]. Bar-Ilan holds a Bachelor of Science in Physics and Computer Science from The Hebrew University of Jerusalem, which she obtained between 2010 and 2013[7]. She participated in the Talpiot Program as a cadet during the same period[6]. Prior to co-founding Cyera in March 2021[3], Bar-Ilan served in research and development roles within the Israel Defense Forces from 2013 to 2020[5]. She also worked as a Software Architect at Lynxight in 2020[4].

Founded

• CCyera

Insights & ideas

Bar-Ilan argues that enterprises today have almost no visibility into their sensitive data, which now lives across hundreds or thousands of systems spanning cloud and AI environments rather than one or two databases [1]. She sees large and small language models as the transformational technology that finally makes this decades-old visibility problem solvable at enterprise scale [1]. A central theme in her thinking is that AI agents fundamentally change the risk calculus around data access: unlike humans, agents move fast, read exhaustively, and will surface every piece of accessible data that was previously protected only by human inattention [1]. She stresses that agent autonomy is both powerful and risky, requiring automated visibility, guardrails, and real-time monitoring of prompts, tool calls, and data flows to prevent sensitive data exposure or misuse [1]. Her guiding analogy is that speed without safety controls, like driving fast without brakes or a seatbelt, is dangerous, so security leaders must build in guardrails to safely enable AI's speed and autonomy [1].

Experience

1. Co-Founder & CTO

   CyeraMar 2021 to Present
2. Software Architect

   Lynxight2020 to 2020
3. R&D

   Israel Defense Forces2013 to 2020
4. Cadet

   Talpiot Program2010 to 2013

Education

• The Hebrew University of Jerusalem · Bachelor of Science - BS, Physics and Computer Science2010 - 2013

Media & appearances

• Cyera Co-Founder and CTO Tamar Bar-Ilan talks about its ...Jun 30, 2026

  Tamar Bar-Ilan, co-founder and CTO of Cyera, discusses how enterprises lack visibility into their data across hundreds or thousands of systems and how AI agents pose new security risks by accessing data at scale. She explains Cyera's products including DSPM, DLP orchestration, and identity security tools, and emphasizes the need for automated visibility and controls around AI agent behavior, including guardrails to prevent sensitive data exposure.

• Floor Talk with Cyera Co-Founder and CTO Tamar Bar-Ilan ...Aug 5, 2024

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