7AI
Boston-based agentic-AI cyber-security company founded by Cybereason co-founders Lior Div and Yonatan Striem-Amit, both Unit 8200 veterans
| 7AI
| |
|---|---|
| Trade name | 7AI (Seven AI) |
| Logo |  7AI logo |
| Type | Private company |
| Founded | 2023 (2024 according to SecurityWeek) |
| Founder(s) | Lior Div, Yonatan Striem-Amit |
| Headquarters | Boston, Massachusetts, United States |
| Industry | Cyber security; artificial intelligence |
| Services | AI agents for security operations centres (alert triage, investigation, threat hunting) |
| Homepage | 7ai.com |
7AI (also written Seven AI) is a cyber-security company based in Boston, Massachusetts, that sells AI "agents" to automate the work of security operations centres. It was founded by Lior Div and Yonatan Striem-Amit, two of the founders of the Israeli-founded security company Cybereason.[1] Both have said they served in Unit 8200, the Israeli military's signals-intelligence unit.[2][3] In December 2025 it announced a $130 million Series A round, which it called "the largest cybersecurity A round in history".[4]
History
According to Ctech, Seven AI "was quietly founded in Boston at the end of 2023" and launched publicly in June 2024 with $36 million of seed funding led by Greylock Partners, with CRV and Spark Capital, both early backers of Cybereason. Div said that its valuation had already passed $100 million, although it had no product yet.[1] SecurityWeek gives 2024 as the founding year and Boston as its base.[5] Its founders had left Cybereason, which Ctech said had seen hundreds of lay-offs and a 90% fall in value and had in effect been taken over by its main investor, SoftBank.[1]
On 4 December 2025 Div announced a $130 million Series A round led by Index Ventures, with Blackstone joining as a new investor alongside Greylock, CRV and Spark. He wrote that the company's agents had processed more than 2.5 million alerts and that DXC Technology had made a large deployment. The company quoted Blackstone's chief security officer, Adam Fletcher, as a design partner.[4]
Founders and military service
- Lior Div, co-founder and chief executive: in a 2016 article for CSO Online he wrote that in the army he "landed in ... the Israeli Defense Forces' cybersecurity intelligence group, Unit 8200. I became commander of a team that specialized in reverse-engineering intricate hacking operations. Our job was to hack hackers" (Unit 8200; Intelligence Corps).[2]
- Yonatan Striem-Amit, co-founder: he told Safety Detectives that "When I was 18, I was chosen for the 8200 intelligence unit of the Israel Defense Forces (IDF)", adding that "The 8200 unit is absolutely the best environment in the world for kids like me".[3]
See also
External links
Notes
- ↑ 1.0 1.1 1.2 Ctech, Cybereason co-founders unveil new AI startup, raise $36 million in Seed funding Ctech, 9 June 2024, accessed 10 November 2026.
- ↑ 2.0 2.1 Lior Div, How my dyslexia launched my hacking career CSO Online, 27 January 2016, accessed 10 November 2026.
- ↑ 3.0 3.1 Aviva Zacks, Interview With Yonatan Striem-Amit – Cybereason Safety Detectives, 24 May 2019, accessed 10 November 2026.
- ↑ 4.0 4.1 Lior Div, 302 Days from Stealth to the Largest Cybersecurity Series A in History 7AI, 4 December 2025, accessed 10 November 2026.
- ↑ Eduard Kovacs, 7AI Launches With $36 Million in Seed Funding for Agentic Security Platform SecurityWeek, 6 February 2025, accessed 10 November 2026.