Cyera, a five‑year‑old Israeli‑origin cybersecurity firm, closed a $600 million round that values it at $12 billion. The capital comes from Evolution Equity Partners, Cyberstarts and Temasek, after a $400 million lift six months earlier that set the firm’s worth at $9 billion. The deal pushes total funding to $2.3 billion.

Cyera’s focus is protecting data from AI‑driven attacks, a shift highlighted by Anthropic’s Mythos model that could expose security gaps. CEO Yotam Segev says only machines can guard machines, underscoring the need for autonomous defenses. Clients such as AT&T, Bose and Chipotle pay north of $1 million a year for the service.

The new capital will fund research, product development and potential takeovers, including recent purchases of Ryft and Genie Security. Cyera added roughly 1,000 employees in the past 18 months, but Segev says AI tools have cut hiring speed. The firm’s annual revenue has more than tripled over three years, though exact figures remain undisclosed.

Cyera’s valuation surge signals investor confidence in AI‑native security as companies face increasingly autonomous threats. With rivals like Zscaler’s Symmetry Systems and legacy players ramping AI capabilities, Cyera’s growth could reshape the sector. The company remains independent and open to an IPO, rejecting a takeover offer.