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Series A
$36M led by Battery Ventures, with Accel and Foundation Capital
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September 18, 2026

How to Replace a Secure Email Gateway Without Breaking Mail Flow

Replace your secure email gateway with no MX change. A parallel-run migration plan: pilot design, stakeholder buy-in, and the metrics that prove it worked.

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September 14, 2026

How AI-Powered Email Security Works (and Where It Beats Traditional Filters)

How AI-native email security detects phishing, BEC, AiTM and zero-day attacks that rule-based filters miss, plus a checklist for verifying vendor claims.

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September 10, 2026

How to Prevent Business Email Compromise: BEC Protection That Works

How BEC attacks work, why they pass SEGs and DMARC, spoofed vs compromised senders, what detection must analyze, and the controls that stop invoice fraud.

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September 9, 2026

Why Email Security False Positives Happen and How to Fix the Root Cause

Why signal-stacking email filters block legitimate mail, how to measure precision, recall and false-positive rate, and how reasoning-based detection cuts both error types at once.

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September 8, 2026

How to Evaluate Email Security Vendors: A Practical Framework for Security Leaders

A buyer's framework for evaluating email security vendors: detection testing, false-positive verification, architecture, explainability, total cost, and a POV checklist.

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September 3, 2026

How to Evaluate API Based Email Security: MX Records, Mail Flow, and SIEM

A practical framework for evaluating API based email security: what to ask about MX record changes, mail flow impact, and SIEM and fraud tool integration.

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June 30, 2026

Introducing the AegisAI Red Team Agent: Test Your Own People Before an Attacker Does

We built an AI agent that runs spear-phishing the way attackers now run it, against your own people, scoped and approved by your security team, so you see who clicks before a real attacker finds out.

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June 23, 2026

Introducing Shadow AI & SaaS Discovery: The Agents Protecting Your Email Now Map Every App It Touches

We are taking the same agents that read your email to stop phishing and pointing them at a new problem: the AI and SaaS apps your team adopted without telling anyone.

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June 17, 2026

A Spam Filter for the AI Era

Your most important email shouldn't be in junk. We are taking the exact same agentic reasoning that stops advanced phishing and malware, and applying it to the rest of your mail.

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February 23, 2026

How LangChain Stopped Thousands of AI Phishing Attacks

Learn how LangChain uses AegisAI to stop thousands of AI-generated phishing attacks, deployed in under 5 minutes.

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