Ent Exits Stealth With $100M to Put Prevention Back in Security
Ent emerged from stealth on June 16 with a $100M seed round to build intent-aware workspace security that reads risky human and AI-agent behavior before an action becomes an incident.
A Big Bet on Stopping Incidents Before They Happen
On June 16, 2026, a new company called Ent stepped out of stealth with a substantial $100 million seed round and a clear thesis: in the age of AI, security has to return to its oldest goal — prevention. The round was led by Decibel, with participation from Sequoia, Crosspoint Capital, Craft Ventures, Shield Capital, Felicis, and In-Q-Tel. That's a serious vote of confidence for a company just emerging into public view.
Let me explain the idea in plain terms, because it's a genuinely interesting reframing of how workspace security should work.
The Core Idea: Intent-Aware Security
Most security tooling is built to detect and respond — it spots a bad thing after it starts and races to contain it. Ent's argument is that AI has compressed the window between compromise and impact so dramatically that "detect and respond" is increasingly too late. When an automated agent can take a damaging action in seconds, you need to intervene *before* the action is finalized.
Ent's platform is described as intent-aware: it interprets the behavior of both human users and AI agents to understand what someone — or something — is about to do, and it intervenes on risky actions before they become incidents. Think of it less as an alarm that rings after a break-in and more as a thoughtful gatekeeper that notices a risky move forming and quietly steps in first.
Why AI Agents Make This Urgent
The rise of autonomous AI agents operating inside enterprise environments is exactly what makes this approach timely. An agent with real permissions can move faster than any human reviewer. Building security that evaluates the *intent* behind an action — whether a person clicks it or an agent triggers it — is a sensible response to a workspace where software increasingly acts on its own.
A Founding Team With a Track Record
Credibility matters in security, and Ent's founders bring it. Elias Manousos and Brandon Dixon previously built RiskIQ, the attack-surface management company that Microsoft acquired, and went on to contribute to the launch of Microsoft Security Copilot. That's a team that has shipped widely deployed security products before and understands both the threat landscape and the practical realities of enterprise rollout.
According to the company, Ent is already deployed with Global 2000 customers across sectors including hospitality and financial services — a sign that the prevention-first pitch is resonating with organizations that have plenty of existing tooling already.
Prevention as a Constructive Direction
Here's why I find this encouraging. The security industry has spent years accumulating detection and response layers, and those remain essential. But shifting some of that energy back toward preventing harmful actions — especially as AI agents proliferate — is a constructive, forward-looking move. It aims to reduce the number of incidents that happen in the first place, which is the outcome everyone actually wants.
The Takeaway
For security teams thinking about how to govern a workforce that now includes autonomous software, Ent's intent-aware, prevention-first model is a thoughtful addition to the conversation. A well-funded team with a proven background, tackling the very real challenge of supervising AI-agent behavior before it causes harm, is the kind of development that makes the defensive side of AI security stronger. It's a welcome reminder that good security is, at its best, about quietly stopping trouble before it starts.
Sources: SecurityWeek — "Endpoint Security Startup Ent Emerges From Stealth With $100 Million Seed Round" — June 16, 2026; BusinessWire — "Ent Emerges from Stealth to Bring Prevention Back to Cybersecurity" — June 16, 2026.