AI-Native Email Security

Pattern-matching is dead.
AI-generated attacks
proved it.

Your SEG catches 99% of threats — for known attacks. The 1% it misses? That's where 100% of breach costs live. StrongestLayer catches what pattern-matching architecturally cannot.

See What Your Stack Is Missing Free 10-day assessment. No MX changes. No disruption.
35.9%
Of today's attacks are architecturally invisible to Microsoft Defender
347
Threats caught in 10 days at a firm already running M365 E5 + leading SEG
~1%
False positive rate vs. 15–20% industry standard for legacy SEGs
The Structural Blind Spot

35.9% of today's attacks are
invisible to Microsoft Defender

That's not a misconfiguration. It's a structural limitation built into how legacy tools were designed. When every attack is unique, there's no signature to match against.

64.1%
35.9%
Caught by Microsoft DefenderArchitecturally invisible →
Performance Comparison

Not incrementally better.
Fundamentally different.

CapabilityLegacy SEG / M365StrongestLayer
Novel Attack DetectionRequires Patient ZeroDay-zero detection
False Positive Rate15–20%~1%
Alert Triage Time23–25 minutes2 minutes
Rule Maintenance20–40 hrs/weekZero
Deployment TimeDays to weeks5–15 minutes
Deployment RiskMX changes requiredAPI-based, zero risk
Proof Point

347 attacks caught in 10 days.
Enterprise security already in place.

A major law firm running Microsoft 365 E5 and a leading SEG. StrongestLayer ran a 10-day assessment alongside their existing stack — and found what was getting through.

347
Total threats detected in 10 business days
~1%
False positive rate vs. 15–20% industry standard
2 min
Average alert triage time vs. 25 min legacy
How It Works

Reasoning-based detection.
Not pattern-matching.

01

API-based deployment — 15 minutes

No MX record changes. No email routing risk. Connects directly to your Microsoft 365 environment via API. Your team keeps working uninterrupted.

02

Inferred Reasoning analyzes every email

Evaluates Intent, Harm, Anomaly, and Deception across every message — understanding what an email is trying to accomplish, not just whether it matches a known pattern.

03

Plain-language alerts your L1 team can action

Every detection comes with a full explanation. No black box. No L2/L3 escalation required. 2-minute verification, not 25.

04

Zero rule writing or signature maintenance

No ongoing configuration. No signature updates. The system reasons about intent — it doesn't need to be taught what new attacks look like.

Free 10-Day Assessment

Find out what's getting through
your stack right now

We run alongside your existing tools for 10 days. No changes to your environment. At the end, you see exactly what's getting through — with full reasoning for every detection.

Book a Demo
If we don't catch anything your tools are missing, the pricing conversation ends there.