Blockaid, a web3 security startup co-founded by two former Israeli military cyber intelligence personnel, has come out of stealth with $33 million in funding.

The funding came in two rounds — $6 million seed and $27 million Series A — Ido Ben-Natan, co-founder and CEO of Blockaid, told The Block. The seed round investors include Sequoia Capital, Greylock Partners and Cyberstarts, Ben-Natan said. The Series A round saw participation from all three investors, as well as Ribbit Capital and Variant, who both co-led the round.

Blockaid was founded in September 2022 by Ben-Natan and his former colleague Raz Niv. Both previously worked in the cyber security research and development team in Unit 8200, the Israeli military's cyber intelligence unit, and in the Office of the Prime Minister of …