A Security Raises $37M Series A

A Security, a Tel Aviv, Israel-based startup developing a platform to defend organizations against AI-powered cyberattacks, has raised a total of $37 million across two funding rounds. The company is building AI agents designed to detect, simulate, and block autonomous cyberattacks before they reach enterprise networks.

Investors

The company initially secured a $5 million seed round led by Cyberstarts. Five months later, it closed a $32 million follow-on round led by Cyberstarts and Lightspeed. The round also attracted prominent angel investors, including Assaf Rappaport, CEO of Wiz; Yotam Segev, CEO of Cyera; Merav Bahat, founder of Dazz; and Cerca Partners.

A Security Use of Funds

The capital will be used to support the development of their agent-based cybersecurity platform that continuously deploys autonomous attacker and defender agents to identify and block potential attack paths.

About A Security

Founded in 2025 by Yossi Torati, Omer Gal, and Yuval Itzchakov, A Security is developing a platform to defend organizations against Weaponized AI. Their product utilizes defensive AI agents that work to identify vulnerabilities and remediate security gaps to neutralize cyberattacks before they are exploited.

Funding Details

Company: A Security
Raised: $37M
Round: Seed,Series A
Funding Date: June 8, 2026
Lead Investor: Cyberstarts, Lightspeed
Additional Investors: Assaf Rappaport, Yotam Segev, Merav Bahat, Cerca Partners
Software Category: Cybersecurity
Company Website: https://a.security/
Source: https://www.calcalistech.com/ctechnews/article/sj3rrxnbzx