Announcing Doppel Email Security

Today, we're announcing Doppel Email Security: the agentic email security solution that empowers you to fight back against social engineering attacks.

Detection isn't enough. Disruption is the difference.

Three Generations of Email Security. One Missing Piece.

Despite decades of innovation, the outcome hasn't changed. Attackers still succeed in seconds, and defenses still take too long to catch up. It's not that the tools don't work. They were built to solve a different problem than the one we're facing now.

Every generation of email security has gotten better at one specific thing: scoring the message in the inbox. Each generation also gets smarter about how it identifies a bad sender. Native protections started with block-lists and basic reputation. Secure email gateways added sender history and message signatures via YARA rules. API-based inbox tools added behavioral ML that scores sender behavior and language

• Native email security, built into your email provider, scans for known bad senders, links, and attachments.
• Secure Email Gateways (SEGs) sit in front of the inbox and filter spam, malware, and basic phishing using sender reputation and message signatures.
• Integrated Cloud Email Security (ICES) sits inside the inbox and uses behavioral ML to score sender behavior and language, catching the phishing attempts that the first two layers miss.

These three layers still work together. None are going away.

But here's what none of them address: with AI, it's become almost impossible to tell the fakes from the real, and none of these layers see the campaign infrastructure behind the message.

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Every Layer Scores the Email. None Stop the Attack.

Modern social engineering is a campaign, not an email. By the time a phish lands in your inbox, the attacker has already done the work. A lookalike domain registered two weeks ago. A deepfake LinkedIn profile impersonating your CFO. A vishing call to your helpdesk last Tuesday. The infrastructure was visible for weeks. No email security tool could see it.

The recent breaches that made headlines at major financial institutions, professional services firms, and global retailers share one pattern. None started with malware. None were stopped by an email filter. It all started weeks earlier, with infrastructure built outside the inbox, invisible to every layer of email security deployed.

The median user clicks a phishing email in under 60 seconds, and click rates are unaffected by training (Verizon DBIR, 2024).

The tools aren't failing. They were never designed for a world where attackers can perfectly mimic anyone, and where the campaign behind the message is invisible until it's too late. Email security needs a new architecture, not a better filter.

Why This Moment Is Different

Two things have changed that make the old architecture untenable.

First, GenAI has collapsed the attack timeline from days to minutes. The phishing email that used to take hours to craft now takes seconds. Attack volume is no longer constrained by human labor.

Second, the attack has gone multichannel. The email is no longer the whole attack. It's the opening move. Inbox-only tools see Stage 3 of a five-stage attack chain. They have no visibility into what came before or after.

Scoring the inbox better doesn't solve either problem. A new layer does.

What Your Current Stack Can't See

If you're running a modern AI-native email security tool, here's what it doesn't know when scoring that message:

• The domain that sent it was registered three weeks ago, specifically for this campaign
• The sender has been building a fake LinkedIn presence, impersonating a vendor contact for two months
• The same campaign has already hit other companies in your industry this week
• The link routes through a redirect chain to a credential harvesting page that went live yesterday

None of that context lives in the inbox. All of it lives in the infrastructure attackers build before they send a single message. That's the gap Doppel was built for.

Doppel Email Security

Doppel was built to defend the social engineering attack chain, not the inbox alone. For years, we've mapped the infrastructure attackers build to launch every phish, vishing call, and deepfake. Email Security brings that intelligence into the inbox. It's the natural extension of that work.

Other email security vendors stop at detecting suspicious messages in the inbox. Doppel goes further: we connect those messages to the infrastructure powering the campaign and shut it down at the source

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What Your Security Organization Gets

A defense that meets the attack at every move it makes: the infrastructure behind it, the volume coming at it, and the message landing in front of it. Modern social engineering exploits gaps no single layer of email security was built to close. Doppel Email Security is designed to close all three.

Disruption Through Targeted Takedowns
Don't just catch the phish. Shut it down. Doppel executes takedowns on the sending infrastructure and malicious links behind every phish at machine speed, so the same campaign doesn't retarget your organization. When unified with Doppel DRP, the takedown reaches the full campaign — lookalike domains, fake profiles, and impersonation kits across every channel attackers use.

Capacity Scaled by the Doppel Agentic SOC
Attack volume is growing exponentially, but security headcount isn't. AI agents close that gap by continuously tuning detection policies, investigating threats, and explaining decisions in plain language. This shifts your security team away from maintaining spaghetti YARA rules or battling a blackbox ML system, and toward clear, human-readable prompt-based detection policies. Every investigation explains itself, so the SOC no longer loses time deciphering complex logic or tracking down emails lost to blackbox machine learning.

Detection Extended by the Doppel 360° Threat Graph
AI agents inspect every message that hits the inbox using content, sender behavior, and the attacker infrastructure mapped by the Doppel 360° Threat Graph. That external intelligence is what lets us catch the AI-generated lures, novel attacks, and zero-days that inbox-only tools miss. The Threat Graph tracks BEC and impersonation infrastructure in real time through DNS registrations, certs, and multi-channel IOCs, connecting what's happening outside the inbox to what lands inside it.

One Intelligence Layer. Built on Signal, Designed to Scale.

Email Security doesn't stand alone at Doppel. It's the newest layer of the unified platform, purpose-built to protect against the entire social engineering attack chain, not just the inbox.

A live impersonation taken down by Digital Risk Protection today becomes simulation material your people train against tomorrow through Human Risk Management. An employee-reported phishing processed by Email Security improves detection for every other inbox. An email header reveals attacker infrastructure that the Threat Graph cross-references against campaigns targeting your customers downstream, surfacing threats before a breach report does.

This is the architectural difference between a platform and a bundle. Detection, disruption, and resilience compound across one intelligence layer. Every attack we see makes you harder to attack.

When Doppel detects a phish in another customer's environment, the attacker infrastructure behind it gets mapped into the Threat Graph, and that intelligence sharpens detection in your inbox. When Digital Risk Protection takes down a lookalike domain targeting another company in your industry, that infrastructure is removed from the attacker's arsenal before it can be turned against you.

Every signal across the platform compounds into protection that no inbox-only tool can match.

Social engineering follows the conversation. Wherever it goes, we go. The threat doesn't stop at the email. Neither should your defense.

Join our webinar on June 23rd covering Doppel Email Security: the agentic email security solution that fights back against social engineering attacks. Register now

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