Cybersecurity startup Ent has officially emerged from stealth mode after raising an impressive $100 million seed round, marking one of the largest seed financings ever recorded in the cybersecurity sector.
The funding round was led by Decibel, with participation from prominent investors including Sequoia Capital, Crosspoint Capital Partners, Craft Ventures, Shield Capital, Felicis, and In-Q-Tel. The company plans to use the capital to accelerate product development, expand engineering teams, and scale go-to-market operations.
The announcement has generated significant attention across the cybersecurity industry, as investors place a major bet on a new approach to defending organizations against AI-powered threats.
Who Is Behind Ent?
Ent was founded by cybersecurity veterans Elias "Lou" Manousos and Brandon Dixon, the team behind RiskIQ, a threat intelligence company acquired by Microsoft.
Following the acquisition, both founders played key roles in Microsoft's security initiatives and contributed to the development of Microsoft Security Copilot. Their deep experience in cyber defense, threat intelligence, and AI-driven security has positioned Ent as one of the most closely watched startups in the industry.
The company's advisory board reportedly includes former security leaders from major organizations, including Google, Aetna, MassMutual, and the U.S. national security community.
What Problem Is Ent Trying to Solve?
Traditional cybersecurity tools typically operate on a "detect and respond" model. Security systems identify suspicious activity after it occurs and then attempt to contain the damage.
According to Ent, that approach is no longer sufficient in an era where AI-powered attacks can unfold in seconds.
The company argues that modern cyber threats move too quickly for human analysts to react effectively. By the time an alert is generated, attackers may have already stolen data, deployed malware, or compromised critical systems.
Ent aims to shift security back toward prevention rather than detection.
How Ent's Technology Works
At the core of Ent's platform is an "intent-aware" security model.
Instead of focusing solely on indicators of compromise, the platform continuously evaluates user and AI agent behavior on endpoint devices such as:
- Laptops
- Desktops
- Workstations
- Enterprise endpoints
The platform uses lightweight endpoint agents combined with AI reasoning capabilities to understand:
- What a user is trying to accomplish
- How AI agents are interacting with systems
- Whether an action aligns with expected behavior
- If a potentially risky action should be blocked
If suspicious activity is detected, Ent can intervene in real time before the action causes harm.
This proactive model is designed to stop threats before they become security incidents.
Why This Matters in the Age of AI
The rapid adoption of AI assistants, autonomous agents, and generative AI tools has introduced entirely new attack surfaces for organizations.
Cybercriminals are increasingly leveraging AI to:
- Automate attacks
- Discover vulnerabilities faster
- Conduct sophisticated phishing campaigns
- Exfiltrate sensitive data
- Accelerate ransomware operations
At the same time, organizations are deploying AI tools across their workforce, creating new risks associated with insider threats, data leakage, and unauthorized automation.
Ent believes security solutions must evolve to understand both human and AI-driven activity in real time.
Early Enterprise Adoption
Despite operating in stealth mode until now, Ent claims its platform is already being used by Global 2000 organizations across sectors including:
- Financial services
- Hospitality
- Defense
- Enterprise technology
The company says its solution integrates alongside existing security stacks rather than replacing them, complementing technologies such as:
- Endpoint Detection and Response (EDR)
- Security Information and Event Management (SIEM)
- Security Orchestration, Automation and Response (SOAR)
- Identity and Access Management (IAM)
Investor Confidence Signals Industry Shift
The $100 million seed investment highlights growing investor confidence in cybersecurity solutions built specifically for the AI era.
Industry analysts note that AI is fundamentally changing both offensive and defensive cybersecurity operations. As attackers gain access to increasingly powerful automation tools, traditional reactive security models face mounting pressure.
Investors appear to believe that prevention-focused security platforms could become a major category over the next decade.
What Comes Next?
Ent plans to use the newly raised capital to expand hiring, strengthen engineering efforts, and accelerate development of its intent-aware security platform.
The company is entering a highly competitive market dominated by established cybersecurity vendors, but its experienced leadership team and substantial funding provide a strong foundation for growth.
As enterprises continue adopting AI-powered workflows, the success of Ent's prevention-first approach could influence the future direction of endpoint security.
Conclusion
Ent's emergence from stealth with a $100 million seed round marks one of the most significant cybersecurity startup launches of 2026. Founded by industry veterans behind RiskIQ and Microsoft Security Copilot, the company is betting that AI-powered prevention—not just detection—will define the next generation of cyber defense.
With cyberattacks accelerating and AI reshaping the threat landscape, Ent's ambitious vision is attracting both investor confidence and industry attention.
