BEC, vendor fraud and invoice fraud

BEC does not look like an attack.

No payload, no bad link, and it passes SPF, DKIM and DMARC.
Agents read the claim the message is making, and verify it.
✓ Runs beside your current filter. Nothing reroutes, nothing breaks✓ Catches a vendor's first fraudulent invoice, with no history to learn from✓ No black box. Agents show their reasoning on every verdict
22%
more attacks found
in production
90%
fewer false positives
vs. the tool it replaces
2 min
to connect by API
M365 or Workspace
Built by
The team behind Gmail Phishing Protection and reCAPTCHA

Connect by API in minutes, read-only. Our agents re-read the last 14 days of delivered mail and report what got through, with the reasoning behind every verdict. Free, and yours to keep.

Trusted by security teams at
AI Generated attacks are here and rapidly growing
50.3%
AI phishing bypass rate against Gmail & Microsoft filters
growth in AI-generated email attacks in 2025
72.6%
of evaded AI phishing passes DMARC: your SEG authenticates the attack
22%
of phishing email volume is now AI-generated
Source: Aegis AI, State of the AI Threat in Email (2025): analysis of 20,000+ phishing emails. Prepared for M3AAWG.
How the assessment works

From connection to BEC report in 72 hours.

Connect by API, read-only. Our agents re-read the last 14 days of delivered mail and report what got through. Zero email disruption.
Minutes
Connect, read-only
API integration with Microsoft 365 or Google Workspace. Read-only. Nothing reroutes. Your current email security keeps running exactly as it is.
14 days reviewed
We look back, not forward
Every message your current tool already delivered, re-examined by the full agent panel. Your filter checked these once, on the way in, for what they carried. It never went back to ask what they were asking for.
72 hours
You get the report
Not a summary. Every threat that reached your users, with the agents' reasoning attached to each verdict: what was checked, what they found, why it mattered. The same trail you would get in production, which is the point. The assessment is the product running on your mail.
YOUR CURRENT FILTER VS AGENTIC AI

Passing authentication is not the same as being legitimate.

Your current filter
Aegis AI
Detection approach
Scans payloads, links and authentication
Agents reason about intent and verify the claim
Messages with no payload
Nothing to scan, so it delivers
Judged on what it asks for, not what it carries
False positive rate
Blunt rules hold legitimate mail
>90% lower
Authenticated senders
SPF, DKIM and DMARC pass, so it is trusted
Authentication is one input, never the verdict
Per-email explainability
A pass or a block, with no reason
Full AI Agent reasoning for every email
BEC, DLP, ATO, Shadow IT
Separate add-ons
Native, all agentic and intent based
Migration support
DIY
Concierge migration, dedicated Engineers
Evidence

Every verdict shows its work

A BEC message carries nothing a scanner can object to. No attachment, no malicious link, and every authentication check passes. The only thing wrong with it is what it is asking for. Three consequences follow, and finance teams live with all three.

01

There is nothing to scan

BEC arrives as plain text. No attachment to detonate, no link to sandbox, no signature to match. Every control built to inspect what a message carries finds nothing, because the message carries nothing. It gets delivered on the grounds that it is clean, and by that standard it is.

02

It passes every authentication check

The most effective BEC comes from a real account that has genuinely been taken over, or from a lookalike domain the attacker owns and has configured properly. SPF, DKIM and DMARC all pass, because the mail really is from where it says it is. Authentication answers who sent a message. It was never built to judge whether the request inside it is real.

03

The only thing wrong is the request

A supplier writes to say their bank details have changed. A director asks for a transfer to close before a deadline. Neither message is anomalous on its own, and both are ordinary business requests that arrive every week. Catching them means evaluating the claim itself: who is asking, what they want changed, and whether the thread and the relationship support it.

Aegis reads the request, checks it against the thread and the sender's history, and writes down what it found and why it mattered. Not a score. A record you can read, argue with, and hand to someone else.

Reviewable

Open any verdict and read the full agent trail: the signals, the conclusion, the timestamp, and the agent that produced each finding.

Exportable

Verdicts, indicators, and audit events push into your SIEM and case management. The evidence lives where your team already works.

Reversible

Release a message and Aegis records who released it and why. Your quarantine decisions become a documented trail rather than a black box.

Measured

In a fifteen-day head-to-head on live customer mail, the incumbent tool held a legitimate customer invoice, a vendor security report, and an internal production-deploy approval. Aegis raised no false positives on the same mail over the same window. All three of those messages were unusual. None of them was an attack.

See it on your own mail

Connect by API in minutes, read-only. Our agents re-read the last 14 days of delivered mail and report what got through, with the reasoning behind every verdict. Free, and yours to keep.

Get my threat report
Integrations

Fits the stack your SOC already runs

Aegis connects to your email platform in minutes and pushes verdicts, indicators and audit events into the tools your analysts already live in. No new console to babysit.

Email platforms
Microsoft 365
Google Workspace
Exchange Online
Identity
Microsoft Entra ID
Okta
Google Identity
SAML / SCIM
SIEM & SOAR
Splunk
Microsoft Sentinel
Google SecOps
Webhook / JSON export
Endpoint & threat intel
CrowdStrike
Abuse mailbox ingest
STIX / TAXII feeds
Workflow
Slack
Microsoft Teams
ServiceNow
Jira

Not listed? Verdicts and indicators are available over a documented API and webhooks, so anything that can read JSON can consume them.

Customers

What security teams say after the first week

Mesh
Aegis is the first solution that truly changes the game. They came into Mesh and stopped attackers in their tracks.
Bam Azizi, CEO at Mesh
Bam Azizi
CEO, Mesh
Lokker
Usually with these tools there is a lot of configuration of things like suppression lists. With Aegis it just worked.
Ian Cohen, CEO at Lokker
Ian Cohen
CEO, Lokker
LangChain
If you just need something that's easy to deploy, low touch, and that just works, AegisAI is great because it scales.
Arthur Stromquist, Security Lead at LangChain
Arthur Stromquist
Security Lead, LangChain
Mesh
The mark of a great email security system is that we don't have to manage it. Aegis was able to come in and help us stop attacks without requiring our team to spend extra time on it.
Arjun Mukherjee, CTO at Mesh
Arjun Mukherjee
CTO, Mesh
Stelliant
What impressed us most about Aegis AI isn't just the technology, it's the team behind it. The result is a solution that stops sophisticated phishing and BEC attacks without slowing our business down.
Benjamin Bouffard, CEO at Stelliant
Benjamin Bouffard
CEO, Stelliant
Spacetil
AegisAI was incredibly easy to install. With Aegis we just don't think about phishing anymore.
Sanjay Mahalingam, Founder at Spacetil
Sanjay Mahalingam
Founder, Spacetil
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Security review

Answered before your reviewers ask

The hard part of buying security software is not the demo. It is the questionnaire, the DPA, and the architecture review. Here is what your security, privacy, and procurement teams will want in writing.

Deployment model
API integration with Microsoft 365 and Google Workspace. No MX record change, no gateway in the mail path, no endpoint agent.
Certification
SOC 2 Type II.
Data protection
Encrypted in transit and at rest. Aegis does not retain full message content beyond what analysis requires.
AI and your data
Analysis runs inside the Aegis boundary. Your mail is not shared with third-party AI labs and is not used to train their models.
Failure mode
Aegis sits beside mail flow rather than inside it. If Aegis is unavailable, mail continues to deliver normally.
Response window
Agents reach a verdict in seconds and act post-delivery, pulling a malicious message back before users see or click it.
Rollback
Revoke the OAuth grant. Access ends immediately and there is no mail-flow change to unwind.
Who built it
Founded by the team that ran phishing and malware defense at Google scale across Safe Browsing, reCAPTCHA, and Web Risk.
FAQ

BEC prevention FAQs

Answers to common questions about how Aegis can enhance your team's inbound email security.
  • Our gateway authenticates every message. Why does BEC still get through?

    Authentication answers a narrow question: did this mail really come from the domain it claims? SPF, DKIM and DMARC are good at that, and BEC is built to pass them. The most effective attacks come from a real supplier account that has been taken over, so the mail genuinely is from that supplier, or from a lookalike domain the attacker registered and configured correctly. In both cases authentication passes honestly. It was never designed to judge whether a request to change bank details is legitimate. Aegis reads the request itself: who is asking, what they want changed, and whether the thread and the sender's history support the claim, then records the reasoning behind the verdict.

  • How does Aegis handle zero-day email attacks?

    A model that has not seen an attack pattern before has nothing to match it against, and crowdsourced intelligence needs a first victim to report it. Aegis AI's agents use real-time analysis, natural language understanding and behavior signals to identify BEC and phishing the moment they appear, before they reach any threat intelligence feed.

  • Can Aegis AI reduce the workload on my security team?

    Yes. By stopping advanced email threats before users see or click, and providing automated triage for suspicious messages, Aegis AI significantly reduces alert fatigue, freeing your team to focus on strategic initiatives.

    • Why should I choose Aegis AI over other inbound email security tools?

      Our platform combines deep expertise from >20 years combined building security products (reCAPTCHA, Safe Browsing, Web Risk and more) with cutting-edge AI to deliver unmatched protection, lower false positives, and effortless integration, ensuring your business stays secure without slowing operations.

    • How easy is it to deploy Aegis AI?

      Deployment is API-based, requiring no hardware, no MX changes, no network changes and no complex policies. Most teams connect in about two minutes and work from a single dashboard for insights and automated response. Nothing sits in the mail path, so there is no migration to plan and nothing to unwind if you disconnect.
      Aegis AI does not score how unusual a message looks. A panel of agents reads what the message is actually asking for, checks that claim against the sender's history and the surrounding context, and records the reasoning. That is what catches an attack with no prior signal, because it does not depend on having seen one like it before.

      The limit of a score is that you cannot argue with it. It tells you a message was unusual, not what was examined or why it mattered, so a mistake cannot be inspected and corrected. Reasoning can be read, disagreed with, and handed to an auditor.

    • How do you catch a vendor's first fraudulent invoice?

      There is nothing to recognise. The account is real, the history is real, and the invoice is the first fraudulent one it has ever sent, so there is no prior signal anywhere and nothing statistically unusual about it. Anything that works by matching against what it has seen before has nothing to match. Aegis works from the message in front of it. It reads what is being asked for, compares the payment details against what the thread and the prior relationship establish, and flags the change rather than the sender. A remittance change on an otherwise ordinary invoice is exactly the case this catches.

      Aegis AI's agents reason about what a message is asking for and verify whether the claim holds up, then attach that reasoning to the verdict. A targeted attack written for one company has no prior signal anywhere and is not statistically unusual, so reasoning is what catches it.

      A baseline also needs history it does not have at the moments that matter most: a first-time vendor, a new employee, a first payment request. Agents reason from the message in front of them, so there is nothing to wait for.
      Aegis AI reads the request itself: who is asking, what they want changed, and whether the thread and the sender's history support it. A payment-detail change from a compromised but otherwise legitimate vendor account is not statistically unusual, which is exactly why scoring misses it.

      And when a scoring model is wrong, the only route to a fix is a support ticket and a retrain. When agents are wrong you can read the trail, see which check produced the finding, and correct it directly.

    See What It Missed

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