Crunchbase News July 29, 2026 3 min signal 2026-07-29

AI seed investors flock to cybersecurity

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Joanna Glasner

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Seed funding trends tell us a lot about how savvy investors see the future unfolding. And lately, the data tells us there’s great concern about cybersecurity risks posed by AI.

It’s a worry that spilled over into headlines last week, after an OpenAI agent hacked into the open-source AI platform Hugging Face. Turns out rogue AI agents causing mayhem is no longer a hypothetical problem.

Seed investors apparently saw this coming, judging by the plethora of good-sized rounds for companies at the intersection of AI and security. Startups in this cohort have raised $855 million across more than 150 reported seed-stage rounds this year, per Crunchbase data. That puts investment on track for an all-time high.

A large cluster of deals in the $5M to $10M range

Here at Crunchbase News, we took a particular interest in seed rounds in the $5 million to $10 million range, an area where cybersecurity investment was particularly robust.

Why this size range? It started as a broader data dive focused on top themes for mid-sized seed rounds, an often overlooked subset in a startup funding climate dominated by AI megadeals.

An initial perusal indicated cybersecurity warrants a standalone analysis. We found both a high number and a wide breadth of funded companies in the space, with missions ranging from identifying AI hallucinations to building adversary simulations to verifying agents in finance.

To illustrate, below is a sample list of 14 AI-focused security companies that raised seed financings this year in our target range.

Big seed and early-stage bets too

We also had some large rounds in the mix, indicating investors saw risk-reward compelling enough to write big checks for newly minted startups. Some of the biggest included:

Oak, a developer of identity intelligence technology for the AI era, secured $60 million in a seed financing this month.

Cylake, a Silicon Valley startup working on an AI-native cybersecurity platform that doesn’t depend on the public cloud, raised $45 million in a March seed round.

JetStream Security, an upstart developing an AI governance and security platform for enterprises, launched in March with $34 million in a seed round it described as massively oversubscribed.

When investors place larger bets at seed, there’s usually at least one of two core reasons. The first is that the founder or founding team is impressive enough that backers are willing to invest primarily on the mission and people. The second is that the startup has demonstrated impressive traction with its earliest efforts.

For larger rounds, we’re seeing a number of the first category. Cylake’s founder and CEO, for example, is Nir Zuk, founder of Palo Alto Networks. JetStream, meanwhile, has drawn veterans of CrowdStrike, SentinelOne and other security leaders.

A solid year for overall security funding

Notably, the strong cybersecurity seed funding environment coincides with solid overall venture investment levels. In the first half of the year, per Crunchbase data, startups in the sector pulled in $10.6 billion in financing across stages, roughly in line with recent prior comps.

That said, seed may be where excitement is greatest. With hundreds of billions flowing into building AI infrastructure and applications in recent quarters, someone will have figure out innovative ways to keep myriad real-life and hypothetical AI security nightmares from coming true.