Cyera

Tamar Bar-Ilan: the CTO building Cyera's data security platform

Tamar Bar-Ilan is Cyera's co-founder and CTO.

Tamar Bar-Ilan is co-founder and CTO of Cyera. Bar-Ilan and CEO Yotam Segev met in the IDF Talpiot program and later served in Unit 8200, where they worked on cloud security.

Cyera was founded in 2021 with Yonatan Itai as third co-founder. It launched from stealth in March 2022 with $60M led by Sequoia Capital.

Bar-Ilan leads product and engineering and sits on the board.

Cyera raised $540M at a $6B valuation in June 2025 and a $600M Series G at $12B in June 2026.

Read the full Cyera founder story

Who is Tamar Bar-Ilan?

Tamar Bar-Ilan is co-founder and chief technology officer of Cyera, the data security company founded in 2021.

How did Tamar Bar-Ilan meet Yotam Segev?

They met more than a decade ago in the IDF Talpiot program and later served together in Unit 8200.

When did Tamar Bar-Ilan start Cyera?

Cyera was co-founded in 2021 with Yotam Segev and Yonatan Itai. It came out of stealth in 2022 with a $60M round led by Sequoia Capital.