AegisAI Bags $36M in Series A Funding Round led by Battery Ventures

The company will use the funding to expand its AI-powered security agents, speed up the launch of Vanguard, its threat detection platform, and grow its enterprise business.

AegisAI uses AI to detect and stop email threats in real time. Its platform combines advanced language models with a network of AI agents to fight AI-powered cyberattacks.

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Instead of only checking emails against known scam patterns, the platform analyzes the intent behind suspicious messages. This helps businesses detect new and evolving phishing attacks faster as AI-generated email scams continue to increase.

AI has made phishing attacks more advanced through a method called AI spear phishing. These attacks use AI to collect information about a person online and create highly personalized emails that trick them into sharing sensitive information, downloading malware, or sending money.

As more people and businesses use AI tools and AI agents, the risk of these attacks is growing. Criminals can also target AI agents that work without human involvement, making it easier for attacks to go unnoticed for longer.

AegisAI uses autonomous AI agent's inside the inbox to check the intent, and identity behind every email. This helps detect advanced phishing attacks that look legitimate while reducing false alerts by up to 90% compared to traditional security tools.

With Vanguard, launched in March, the AI also investigates suspicious links and attachments outside the inbox. It safely explores websites and files like a real user and delivers a detailed threat report within minutes.

"Email is where enterprise trust lives and generative AI just broke every assumption legacy email security was built on," said Dharmesh Thakker, general partner at Battery Ventures. "When attacks are machine-generated, personalized and indistinguishable from legitimate mail, the only viable defense is an equally capable AI operating at machine speed.

"The most immediate, catastrophic risk to your organization isn't an AI agent hacking your firewall. It's an AI model manipulating someone in your organization into handing over the keys, often through the most trusted, most vulnerable contact of the person it's targeting," said Cy Khormaee, co-founder and CEO of AegisAI. "You cannot patch human trust. If your security program still relies on template-based phishing tests and awareness training, you are training your people to spot last year's threat, not a capable agent crafting a novel lure just for them.

About AegisAI

Founded by Cy Khormaee and Ryan Luo, AegisAI is a San Francisco-based email security company that builds its own AI models to protect inboxes. Created by the team behind Google's reCAPTCHA, Safe Browsing, and Web Risk, AegisAI uses autonomous AI agents to stop AI-generated phishing attacks, business email compromise (BEC), and other advanced email threats that traditional security tools often miss.

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