Abnormal AI Alternative

Abnormal AI Alternatives
Email Security Compared

Abnormal AI pioneered behavioural API-based email security but prices quote-only with a $25,000 minimum initial order (dms.myflorida.com, 2024). TigerGate delivers the same API-based protection against phishing, BEC and account takeover — in the same platform as code, cloud, runtime and endpoint security — at usage-based prices you can trial yourself.

Try TigerGate FreeSee All Alternatives
8
TigerGate security pillars
3
Abnormal pillars (email, identity, AI)
$0
TigerGate minimum
$25k
Abnormal min. initial order (public doc)
14d
Self-serve trial
Demo
Abnormal access

Why Teams Look for Abnormal Alternatives

Quote-only pricing

$25k minimum initial order (Florida procurement doc)

FP tuning

Legitimate mail briefly held or auto-remediated (G2, rfp.wiki)

No gateway

Teams needing sandboxing / archiving keep Proofpoint or Mimecast

Platform breadth

No code, cloud, Kubernetes or runtime coverage

Feature Comparison: TigerGate vs Abnormal AI

Sourced from each vendor's public materials; last verified October 2026

FeatureTigerGateAbnormal AI
Deployment
API, no MX changes
Microsoft 365 support
Google Workspace support
14-day self-serve trialLimited
Passive proof-of-value modeLimited
Detection
Behavioural AI (per-user, per-vendor baselines)
Credential phishing
Business email compromise (BEC)
Vendor email compromise / invoice fraud
Internal / lateral phishing (post-ATO)
User-reported phishing triage
Response
Automatic post-delivery remediation
Session revoke on ATO detection
Malicious mailbox-rule reversal
OAuth-grant revoke
Posture
Microsoft 365 / Google Workspace tenant posture
SPF, DKIM, DMARC, MTA-STS validationLimited
Platform breadth
Code security (SAST, SCA, secrets, IaC)
Cloud posture (CSPM, KSPM)
Container security
eBPF runtime protection
Developer / employee endpoint securityLimited
Linux and cloud VM vulnerability monitoring
Compliance automation (SOC 2, ISO 27001, PCI, FedRAMP, CERT-In)
Commercial
Published pricing
Minimum initial orderNone$25,000 (public procurement doc)
Pricing modelUsage-based per mailboxQuote-based per mailbox / employee

Where Abnormal AI Has Trade-Offs

Public-source caveats raised in reviews and procurement data

Quote-Only Pricing

Abnormal does not publish pricing. The Florida DMS Price Proposal lists $40.48/mailbox at 150–2,999 mailboxes with a $25,000 minimum initial order.

TigerGate: usage-based per mailbox, published

Post-Delivery Window

Behavioural analysis runs after delivery. Legitimate messages can be briefly held or auto-remediated and need admin review (G2, rfp.wiki).

TigerGate: passive proof-of-value mode to measure first

No Code or Cloud Security

Abnormal's platform page lists email, identity and AI security. It does not list SAST, SCA, CSPM, KSPM, container or runtime products.

TigerGate: all of the above in one platform

No eBPF Runtime

No workload-level runtime detection. A compromised mailbox is seen; the cloud workload the credentials unlock isn't.

TigerGate: eBPF agent on Kubernetes, Docker, ECS and VMs

Enterprise Procurement

No self-serve trial on the public site; access is sales-led. Teams below the $25k minimum typically can't buy at list.

TigerGate: 14-day self-serve trial, no credit card

Device-Level Shadow AI

Abnormal AI Governance discovers shadow AI via email and identity signals. It does not see desktop AI apps, IDE assistants or MCP servers on the laptop.

TigerGate Endpoint: device-level AI discovery

How TigerGate Email Security Works

Same deployment model as Abnormal — API-connected to Microsoft 365 or Google Workspace, no MX changes — in a platform that also covers code, cloud, runtime and endpoint

1. Connect via API

Grant admin consent for Microsoft 365 or Google Workspace. No MX changes, no mail flow changes. Start in passive mode to observe without remediating.

2. Behavioural Baselines

Per-user, per-vendor behavioural baselines detect phishing, business email compromise, invoice fraud and lateral phishing from compromised internal accounts.

3. Respond and Contain

Automatic post-delivery remediation. On ATO: revoke session, reverse malicious inbox rules, revoke OAuth grants, force reset — all from one console.

Platform Breadth

Abnormal protects email, identity and AI. TigerGate protects email and code, cloud, Kubernetes, container, runtime, endpoint and server — one correlation graph, one bill.

  • Same API-based email detection surface
  • Correlates with code, cloud and runtime graph
  • Device-level shadow AI (desktop apps, MCP servers)
  • Linux and cloud VM vulnerability monitoring
  • Compliance evidence for SOC 2, ISO 27001, PCI, FedRAMP, CERT-In

Security Pillar Coverage

TigerGate8 of 8
Abnormal AI3 of 8

Pillars: Code · Cloud · Runtime · Endpoint · Email · Server · AI · Compliance

Abnormal AI Alternatives Compared

How the main peers stack up at a glance

TigerGate

Platform (API)
Pros:
  • Email + code + cloud + runtime + endpoint
  • Usage-based, 14-day self-serve trial
  • Passive proof-of-value mode
Cons:
  • Newer email entrant; no independent efficacy benchmarks yet
Best for: Teams below Abnormal's minimum that also want code / cloud / runtime security

IRONSCALES

API-based ICES
Pros:
  • Published per-mailbox tiers
  • User-reported phishing triage (Themis)
  • Phishing simulation in higher tiers
Cons:
  • Smaller behavioural signal set than Abnormal
  • Tuning effort reported on review sites
Best for: Mid-market teams wanting Abnormal-style detection with lighter procurement

Sublime Security

API-based ICES
Pros:
  • Open-source MQL detection rules
  • Transparent detection logic
  • Free Community tier
Cons:
  • More hands-on; requires detection engineering
  • Smaller ATO feature set
Best for: Security engineering teams that want to read and write rules

Material Security

API-based ICES
Pros:
  • Historic email encryption and access control
  • Strong Google Workspace coverage
Cons:
  • Pricing not published
  • Less BEC-focused marketing than Abnormal
Best for: Teams whose biggest worry is post-compromise data access

Check Point Harmony Email (Avanan)

API-based ICES
Pros:
  • Lower per-mailbox price than Abnormal (~$4–6)
  • Mature product, large install base
Cons:
  • BEC detection reviewed as less sophisticated
  • Admin console complexity
Best for: M365 shops wanting API-based protection at a lower unit price

Microsoft Defender for Office 365

Native (M365)
Pros:
  • Already in Microsoft 365 E5
  • Published pricing ($2 / $5 per user / mo)
Cons:
  • Weaker behavioural BEC detection than specialist tools
Best for: Microsoft 365 shops using it as a baseline layer
Read our complete guide to Abnormal AI alternatives →
"We priced Abnormal and bounced off the $25k minimum. Running TigerGate's passive mode for three weeks caught the same BEC patterns on our Microsoft 365 tenant and the same console protects our AWS and GitHub workloads. One contract instead of three."
PR
Priya Rangan
Head of Security, 350-person SaaS

Switch to TigerGate in Minutes

API connect; passive first; enforce when you're ready

1. API Connect

Grant admin consent for Microsoft 365 or Google Workspace. No MX changes, no gateway swap.

2. Run Passive 2–4 Weeks

TigerGate reports what it would have remediated while your existing stack keeps running. Measure before enforcing.

3. Enable Enforcement

Turn on post-delivery remediation and ATO response. Add code, cloud and endpoint modules as the programme matures.

Abnormal AI Alternative FAQ

Common questions about switching from Abnormal

For API-based detection and removal of phishing, BEC and ATO in Microsoft 365 and Google Workspace, yes — same deployment model, same post-delivery remediation. The deciding factor is usually commercial: Abnormal is quote-based with a $25,000 minimum initial order in the public Florida procurement document (dms.myflorida.com, 2024); TigerGate is self-serve and usage-based. Teams below that minimum, or that want email in the same platform as code and cloud, switch to TigerGate.
Abnormal does not publish pricing. The State of Florida DMS 'Price Proposal' document lists Abnormal Inbound Email Security at $40.48 per mailbox for 150–2,999 mailboxes, $26.28 for 3,000–9,999 mailboxes, $17.59 for 10,000–99,999, and $12.80 for 100,000+, with a $25,000 minimum initial order. Vendr buyer data cites typical annual spend between $28,000 and $95,000 (median ~$44,000). costbench.com lists median $41,360/year across 42 purchases.
Neither requires MX changes. Both connect through the Microsoft 365 and Google Workspace APIs. Both can start in a read-only / passive mode.
Yes. TigerGate's passive mode analyses mail without remediating, so you can measure detections and false positives on the same tenant for two to four weeks before changing production behaviour.
G2 and Gartner Peer Insights rate Abnormal highly for ease of deployment and detection quality. Commonly cited drawbacks include occasional false positives that need manual admin review, premium pricing, and post-delivery analysis that can briefly expose a message before removal. These are reported concerns from public review sites, not an efficacy claim.
IRONSCALES, Sublime Security, Material Security and Check Point Harmony Email (Avanan) are the closest API-based peers. Proofpoint and Mimecast suit teams that still want a gateway. Microsoft Defender for Office 365 is the cheapest native baseline for M365 shops. TigerGate adds email to a broader platform (code, cloud, runtime, endpoint). See the dated listicle at /blog/top-10-abnormal-alternatives/.
Abnormal launched AI Governance (announced 28 Jul 2026, live 3 Aug 2026) that discovers shadow AI using email and identity signals. TigerGate's shadow AI coverage is device-level (desktop AI apps, IDE assistants, MCP servers on the laptop) via Endpoint Security — a different signal source. See /solutions/shadow-ai/ for how the layers compare.

Ready for an Abnormal Alternative?

Join teams that chose TigerGate for API-based email security plus code, cloud, runtime and endpoint in one usage-based platform.

Start Free TrialTalk to Sales

14-day trial · No credit card · Facts observed October 2026, not an efficacy benchmark