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Home / Vendors / Abnormal Security vs Diligent

Abnormal Security vs Diligent

Choosing between Abnormal Security and Diligent for compliance automation? Both support SOC 2, HIPAA, GDPR, NIST CSF, while Diligent also covers ISO 27001. This comparison breaks down ratings, pricing, framework coverage, and key differences to help you decide.

Reviewed by ComplyGuide Editorial Team·Updated March 2026
Quick Verdict

Frameworks

Diligent (5 vs 4)

Starting Price

Tied ($Contact for pricing/mo)

User Rating

Abnormal Security (4.6/5)

Abnormal Security logo

Abnormal Security

4.6/5 (0 reviews)

Founded in 2018, Abnormal Security is a cloud email security platform that uses behavioral AI to protect organizations from advanced email attacks including business email compromise, phishing, and account takeover. The platform provides compliance reporting and integrates with GRC workflows to demonstrate email security posture. It holds a excellent 4.6/5 rating based on 0 reviews. Headquartered in San Francisco, CA. The company has 501-1000 employees. It supports SOC 2, HIPAA, GDPR, NIST CSF.

SOC 2
HIPAA
GDPR
NIST CSF
Diligent logo

Diligent

4.2/5 (0 reviews)

Founded in 2001, Diligent provides a modern GRC platform combining board management, risk oversight, compliance management, and ESG reporting. The platform connects board-level governance with operational risk and compliance through an integrated suite trusted by thousands of organizations worldwide. It holds a strong 4.2/5 rating based on 0 reviews. Headquartered in New York, NY. The company has 1000+ employees. It supports SOC 2, ISO 27001, GDPR, HIPAA, NIST CSF.

SOC 2
ISO 27001
GDPR
HIPAA
NIST CSF

Side-by-Side Comparison

FeatureAbnormal SecurityDiligent
Rating4.6/5 (0 reviews)4.2/5 (0 reviews)
Starting PriceContact for pricingContact for pricing
Founded20182001
Company Size501-10001000+
HeadquartersSan Francisco, CANew York, NY
Frameworks45
Pricing Plans33

Framework Support

FrameworkAbnormal SecurityDiligent
GDPR
HIPAA
ISO 27001
NIST CSF
SOC 2

Pricing Comparison

Abnormal Security Pricing

  • Inbound SecurityCustom
  • Email Security PlatformCustom
  • EnterpriseCustom
View full pricing

Diligent Pricing

  • GovernanceCustom
  • Risk & ComplianceCustom
  • EnterpriseCustom
View full pricing

Verdict

In summary: Abnormal Security edges out on user rating (4.6 vs 4.2). Also, Diligent supports additional frameworks (ISO 27001) that Abnormal Security does not cover. Also, Diligent has been in the market longer (since 2001), while Abnormal Security (since 2018) brings a more modern approach. Ultimately, the best choice depends on your organization's specific compliance requirements, team size, and budget. We recommend requesting demos from both vendors before committing.

View Abnormal SecurityView Diligent

When to Choose Each

Choose Abnormal Security if:

  • Peer reviews matter to you (4.6/5 user rating)
  • You want a more modern platform built with newer technology

Choose Diligent if:

  • You need ISO 27001 compliance support
  • You need multi-framework compliance across 5 standards
  • You prefer an established vendor with a longer track record (since 2001)

Ready to decide?

Get pricing information directly from these vendors.

Abnormal Security

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Diligent

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