Reasoning, Not Rules

Your SEG matches patterns. Attackers stopped using them.

StrongestLayer reads every email like your best security analyst, catching the AI-generated attacks that pass SPF, DKIM and DMARC. 15-minute deploy, no MX changes.

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Free POC · no MX changes · no credit card

What we catch that your gateway can't.

Legacy email security (SEG)
  • Matches known signatures and patterns
  • Blind to AI-generated, never-seen-before attacks
  • Waves through BEC that passes SPF, DKIM & DMARC
  • Buries analysts in false positives
  • Alerts pile up, hours of manual triage
StrongestLayer
  • Reads every email like a human analyst
  • Catches first-time, one-of-a-kind attacks
  • Flags auth-passed fraud by intent and behavior
  • Under 1% false positives
  • Every alert pre-investigated, closes in minutes

The whole platform, in motion.

Inbox Advisor in the mailbox · Threat Triage verdicts · organization-wide Threat Hunt.

“What took our team 15 minutes to investigate now takes seconds. StrongestLayer fundamentally changed how we handle email threats across our firm.
Law firm customer · first month of deployment
$51.97
ROI per $1 spent (independent assessment)

Run it next to your SEG. Keep whichever wins.

Free POC: deploy in 15 minutes via API, observe for one week, see every attack your current stack approved.

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SOC 2No MX changesFree POCNo credit card
© 2026 StrongestLayer · Tomorrow's Threats. Stopped Today.
Run it next to your SEGFree POC · no MX changes
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mail.company.com · alex@company.com
Mail
Inbox 24
Flagged
Sent
Archive
Inbox Advisor
StrongestLayer add-in active.
Suspicious? Ask the Advisor.
StrongestLayer
SECURITY OPERATIONS
Home
Threat Landscape
Message Log Early Access
STOPPED PRE-DELIVERY
2,000
CONFIRMED THREATS
THIS MONTH
Inbox
Your mailbox, with the StrongestLayer Inbox Advisor add-in.
AP
Acme Procurement now
Q3 invoice #4417: payment confirmation…
SW
Sarah Whitman 9:14
Re: MSA redlines, final pass attached
GH
GitHub 8:52
[app/core] PR #2291 merged
ST
Stripe 8:31
Your February invoice is available
Q3 invoice #4417: payment confirmation
AP
Acme Procurementinvoices@acmelogistics.com · to alex@company.com

Hi Alex,

Payment for Q3 invoice #4417 cleared on our side this morning — thank you for the quick turnaround.

A stamped copy is attached for your records. No changes to our remittance details; everything stays as it has for the last three years.

Best,
Dana Reeves · Accounts Receivable, Acme Logistics

invoice-4417-stamped.pdf · 182 KB
Reply Reply All Forward
Inbox Advisor
RIGHT IN YOUR MAILBOX
reading intent…
Sender verified: 3-year relationship, 142 prior threads
Stated purpose matches request: routine invoice
No credential requests, no payment redirects
SAFE TO TRUST 0TRUST SCORE
Legitimate vendor invoice. Safe to engage with links and attachment.
Threat Triage
Emails StrongestLayer stopped, each with an explainable verdict.
billing@acmelogisticss.com MALICIOUS
Updated banking details for Q3 invoice
no-reply@docusign-view.net MALICIOUS
Action required: document awaiting signature
ceo.office.mail@gmail.com MALICIOUS
Quick task - are you at your desk?
STOPPED PRE-DELIVERY · CASE #1382
Updated banking details for Q3 invoice
billing@acmelogisticss.com
BEC / FraudImpersonation: VendorFirst encounter
Verdict
EXPLAINABLE · PRE-INVESTIGATED
MALICIOUS HIGH SEVERITY
→Stated purpose: routine invoice
→Actual request: redirect payment
→Domain is 1 letter off real vendor
→Vendor has never used this bank
Hunt similar threats →
Threat Hunt
Turn one threat into an organization-wide sweep.
HUNT BY IOC
SWEEPING PROTECTED MAILBOXES 0 / 1,384
m.torres@…Finance
Updated banking details for Q3 invoice
● FOUND✕ QUARANTINED
j.okafor@…Accounts Payable
RE: Updated banking details for Q3 invoice
● FOUND✕ QUARANTINED
d.kim@…Procurement
Acme Logistics: new remittance information
● FOUND✕ QUARANTINED
+ 9 moreacross the org
Same sender infrastructure · same payload
● FOUND✕ QUARANTINED
MATCHES12
MAILBOXES8
REMEDIATED100%
TIME TO SWEEP1m 42s
Suspicious email? Ask the Advisor.