Seven AI co-founders.

Cybereason co-founders unveil new AI startup, raise $36 million in Seed funding

“With attackers harnessing the power of AI to unleash unprecedented levels of cyber assaults, the time has come to equip defenders with the same cutting-edge technology,” said Yonatan Striem-Amit, who founded Seven AI with Lior Div after leaving Cybereason last year 

Lior Div and Yonatan Striem-Amit, two of the founders of Cybereason, have embarked on a new journey with their latest cyber startup, Seven AI. After departing from Cybereason—a company that once soared as a promising cyber unicorn but recently faced challenges including restructuring and layoffs—the duo is ready to take on the cyber world anew.
Seven AI was quietly founded in Boston at the end of 2023, but it wasn't until last week that it made headlines, thanks to a feature in the Wall Street Journal. The startup launched with an impressive $36 million in Seed funding, led by Greylock Partners and joined by CRV and Spark Capital—both of which were early backers of Cybereason. Despite not having a tangible product at the time, Div revealed that the company’s valuation has already surpassed $100 million. Development began in February, although sales are yet to start.
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מייסדי סייבריזן Cybereason מימין יוסי נער ליאור דיב ו יונתן שטרים עמית
מייסדי סייבריזן Cybereason מימין יוסי נער ליאור דיב ו יונתן שטרים עמית
Seven AI co-founders.
(Photo: Ryuji Suzuki)
The vision behind Seven AI is to create a next-generation Security Operations Center (SOC) system based on generative AI. “With attackers harnessing the power of AI to unleash unprecedented levels of cyber assaults, the time has come to equip defenders with the same cutting-edge technology. Our mission is clear: to arm these defenders with AI, turning the tide in the cybersecurity battle,” Striem-Amit wrote on LinkedIn.
After being on the verge of an IPO in 2021, Cybereason has since seen its CEO resign, hundreds of employees get laid off, as well as effectively get taken over by its main investor SoftBank, all while experiencing a 90% drop in value. Cybereason was going to go public at a valuation of as much as $5 billion in 2021 after raising $325 million at a $3.1 billion valuation. However, very little has gone to plan since, with the company cutting dozens of jobs in what was its third round of layoffs earlier this year.