Nir Zuk's Cylake raises $245M to put security back in the building
Lightspeed led the convertible note for Cylake, which has raised $290M before its sovereign security platform reaches beta.
By RuntimeWire Staff · Published
Primary source: Ctech
Why it matters
Cylake has raised $290M before beta because investors are underwriting Nir Zuk's record and a costly full-stack build. The product still has to prove that sovereign customers will replace fragmented security tools with one locally installed platform.
Nir Zuk's Cylake announced a $245 million convertible-note financing on September 8th, 2026, giving the Palo Alto Networks founder an unusually large pool of capital to rebuild enterprise security around hardware, private infrastructure and data that stays inside the customer's walls.…
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