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# Abnormal AI vs Microsoft Defender for Office 365 Comparison - What are their main differences?

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Abnormal AIMicrosoft Defender for...[+ Add Product](#)

Pricing

**Abnormal AI**
Free Trial

No pricing available

**Microsoft Defender for Office 365**
 **$2.00** 1 User Per Month · Microsoft Defender for Office Plan 1

**Pricing Insights**
from reviews

Time to Implement

**Abnormal AI**
1 monthFaster

Based on 22 responses

**Microsoft Defender for Office 365**
2 months

Based on 10 responses

Return on Investment

**Abnormal AI**
7 months7 months sooner

Based on 22 responses

**Microsoft Defender for Office 365**
14 months

Based on 7 responses

Perceived Cost

**Abnormal AI**
$$$$$

**Microsoft Defender for Office 365**
$$$$$

Average Discount

**Abnormal AI**
14%2% more

**Microsoft Defender for Office 365**
12%

**Pros & Cons**
from reviews

**Abnormal AI**
[
Ease of Use (15)
](https://www.g2.com/products/abnormal-ai/reviews?filters%5Bsentiment_snippet%5D=1757588&qs=pros-and-cons#reviews)[
Customer Support (12)
](https://www.g2.com/products/abnormal-ai/reviews?filters%5Bsentiment_snippet%5D=1757687&qs=pros-and-cons#reviews)[
Email Filtering Issues (3)
](https://www.g2.com/products/abnormal-ai/reviews?filters%5Bsentiment_snippet%5D=1757451&qs=pros-and-cons#reviews)[
Email Issues (3)
](https://www.g2.com/products/abnormal-ai/reviews?filters%5Bsentiment_snippet%5D=2201593&qs=pros-and-cons#reviews)

**Microsoft Defender for Office 365**
[
Ease of Use (9)
](https://www.g2.com/products/microsoft-microsoft-defender-for-office-365/reviews?filters%5Bsentiment_snippet%5D=1426149&qs=pros-and-cons#reviews)[
Security (9)
](https://www.g2.com/products/microsoft-microsoft-defender-for-office-365/reviews?filters%5Bsentiment_snippet%5D=1425350&qs=pros-and-cons#reviews)[
Complexity (8)
](https://www.g2.com/products/microsoft-microsoft-defender-for-office-365/reviews?filters%5Bsentiment_snippet%5D=1424859&qs=pros-and-cons#reviews)[
False Positives (6)
](https://www.g2.com/products/microsoft-microsoft-defender-for-office-365/reviews?filters%5Bsentiment_snippet%5D=1426481&qs=pros-and-cons#reviews)

Integrations

**Abnormal AI**
[

 ![Product Avatar Image](https://images.g2crowd.com/uploads/product/image/large_detail/large_detail_a9279abf95f4eac70ed9904077b93f39/arctic-wolf%282%29.png "Product Avatar Image")

Arctic Wolf

](https://www.g2.com/products/arctic-wolf/reviews)[

 ![Product Avatar Image](https://images.g2crowd.com/uploads/product/image/large_detail/large_detail_2a3c6c39bf8b8eb277cfcd42d9bbca1e/asana.png "Product Avatar Image")

Asana

](https://www.g2.com/products/asana/reviews)[

 ![Product Avatar Image](https://images.g2crowd.com/uploads/product/image/large_detail/large_detail_6d237d93de1d8a7baa8fc4a7f7d47e0f/atlassian-2025-01-31.jpeg "Product Avatar Image")

Atlassian

](https://www.g2.com/products/atlassian-2025-01-31/reviews)[

 ![Product Avatar Image](https://images.g2crowd.com/uploads/product/image/large_detail/large_detail_9b832fe9bb15e5e18b6852a303b57d40/box.jpg "Product Avatar Image")

Box

](https://www.g2.com/products/box/reviews)[
View all
](https://www.g2.com/products/abnormal-ai/integrations)

**Microsoft Defender for Office 365**
[

 ![Product Avatar Image](https://images.g2crowd.com/uploads/product/image/large_detail/large_detail_e89d21750715f4646ed61c011b2917dc/adobe-acrobat.png "Product Avatar Image")

Adobe Acrobat

](https://www.g2.com/products/adobe-acrobat/reviews)[

 ![Product Avatar Image](https://images.g2crowd.com/uploads/product/image/large_detail/large_detail_ae5d46296d0f8afa0fd352fc44bf419d/microsoft365.png "Product Avatar Image")

Microsoft 365

](https://www.g2.com/products/microsoft365/reviews)[

 ![Product Avatar Image](https://images.g2crowd.com/uploads/product/image/large_detail/large_detail_790f5095f4e17577cead05669971b794/microsoft-onedrive-for-business.jpg "Product Avatar Image")

Microsoft OneDrive

](https://www.g2.com/products/microsoft-onedrive-for-business/reviews)[

 ![Product Avatar Image](https://images.g2crowd.com/uploads/product/image/large_detail/large_detail_69054bc7d40597b06fc3905720ccc914/microsoft-outlook.png "Product Avatar Image")

Outlook

](https://www.g2.com/products/microsoft-outlook/reviews)[
View all
](https://www.g2.com/products/microsoft-microsoft-defender-for-office-365/integrations)

Screenshots

**Abnormal AI**
 ![Abnormal AI screenshot](https://images.g2crowd.com/cdn-cgi/image/width=600,height=600,fit=scale-down,format=auto,onerror=redirect,/https://images.g2crowd.com/uploads/attachment/file/1212092/Abnormal-Threat-Log-_1_.png)

**Microsoft Defender for Office 365**
 ![Microsoft Defender for Office 365 screenshot](https://images.g2crowd.com/cdn-cgi/image/width=600,height=600,fit=scale-down,format=auto,onerror=redirect,/https://images.g2crowd.com/uploads/attachment/file/1244899/MicrosoftTeams-image-_1_.png)

**Ratings**
from reviews

Meets Requirements

**Abnormal AI**

9.2

9.263

**Microsoft Defender for Office 365**

9.0

9.0232

Ease of Use

**Abnormal AI**

9.5

9.563

**Microsoft Defender for Office 365**

8.9

8.9235

Ease of Setup

**Abnormal AI**

9.3

9.362

**Microsoft Defender for Office 365**

8.7

8.7119

Ease of Admin

**Abnormal AI**

9.5

9.550

**Microsoft Defender for Office 365**

8.9

8.9101

Quality of Support

**Abnormal AI**

9.5

9.561

**Microsoft Defender for Office 365**

8.7

8.7226

Has the product been a good partner in doing business?

**Abnormal AI**

9.4

9.450

**Microsoft Defender for Office 365**

8.7

8.7102

Product Direction (% positive)

**Abnormal AI**

9.2

9.256

**Microsoft Defender for Office 365**

9.4

9.4223

**Features**
ratings from reviews

Cloud Email Security

8.7

49

8.8

164

Intelligent Email Protection

9.1

33

8.9

5

Email Anti-spam

9.4

13

7.8

15

User Insights

**Reviewers' Company Size**

Small-Business(50 or fewer emp.)
6.9%

Mid-Market(51-1000 emp.)
46.0%

Enterprise(\> 1000 emp.)
47.1%

Small-Business(50 or fewer emp.)
6.9%

Mid-Market(51-1000 emp.)
46.0%

Enterprise(\> 1000 emp.)
47.1%

Small-Business(50 or fewer emp.)
25.8%

Mid-Market(51-1000 emp.)
38.2%

Enterprise(\> 1000 emp.)
36.0%

Small-Business(50 or fewer emp.)
25.8%

Mid-Market(51-1000 emp.)
38.2%

Enterprise(\> 1000 emp.)
36.0%

**Reviewers' Industry**

[![Abnormal AI](https://images.g2crowd.com/uploads/product/image/thumb_square/thumb_square_7ef36b7a6379c2513637fff86d0936b7/abnormal-ai.png "Abnormal AI")](https://www.g2.com/products/abnormal-ai/reviews)
Abnormal AI

Manufacturing
10.4%

Financial Services
10.4%

Information Technology and Services
7.8%

Automotive
5.2%

Non-Profit Organization Management
5.2%

Other
61.0%

[![Microsoft Defender for Office 365](https://images.g2crowd.com/uploads/product/hd_favicon/a8a99a96fda235658139f710592f8a53/microsoft-microsoft-defender-for-office-365.svg "Microsoft Defender for Office 365")](https://www.g2.com/products/microsoft-microsoft-defender-for-office-365/reviews)
Microsoft Defender for Office 365

Information Technology and Services
25.6%

Computer & Network Security
12.5%

Computer Software
12.5%

Financial Services
5.3%

Accounting
2.8%

Other
41.3%

Alternatives

**Abnormal AI Alternatives**

 ![Proofpoint Core Email Protection](https://images.g2crowd.com/uploads/product/hd_favicon/8adf2eedd5616a9f5e200c4520f6d30d/proofpoint-core-email-protection.svg "Proofpoint Core Email Protection")

[
Proofpoint Core Email...
](/products/proofpoint-core-email-protection/reviews)

 ![Mimecast Advanced Email Security](https://images.g2crowd.com/uploads/product/hd_favicon/4de3129d806e9580f2866c054f5a8591/mimecast-advanced-email-security.svg "Mimecast Advanced Email Security")

[
Mimecast Advanced Email...
](/products/mimecast-advanced-email-security/reviews)

 ![IRONSCALES](https://images.g2crowd.com/uploads/product/hd_favicon/06b1561b9d4413964954a7658e64f056/ironscales.svg "IRONSCALES")

[
IRONSCALES
](/products/ironscales/reviews)

 ![Darktrace / EMAIL](https://images.g2crowd.com/uploads/product/hd_favicon/5e1597ba93c002f9bf4ade3068746f29/darktrace-email.svg "Darktrace / EMAIL")

[
Darktrace / EMAIL
](/products/darktrace-email/reviews)

**Microsoft Defender for Office 365 Alternatives**

 ![Proofpoint Core Email Protection](https://images.g2crowd.com/uploads/product/hd_favicon/8adf2eedd5616a9f5e200c4520f6d30d/proofpoint-core-email-protection.svg "Proofpoint Core Email Protection")

[
Proofpoint Core Email...
](/products/proofpoint-core-email-protection/reviews)

 ![SpamTitan Email Security](https://images.g2crowd.com/uploads/product/hd_favicon/1553620140/spamtitan-email-security.svg "SpamTitan Email Security")

[
SpamTitan Email Security
](/products/spamtitan-email-security/reviews)

 ![IRONSCALES](https://images.g2crowd.com/uploads/product/hd_favicon/06b1561b9d4413964954a7658e64f056/ironscales.svg "IRONSCALES")

[
IRONSCALES
](/products/ironscales/reviews)

 ![Symantec Email Security.Cloud](https://images.g2crowd.com/uploads/product/hd_favicon/7e0271a147c13a70a6587f9586b454a0/symantec-email-security-cloud.png "Symantec Email Security.Cloud")

[
Symantec Email Security.Cloud
](/products/symantec-email-security-cloud/reviews)

## Abnormal AI vs Microsoft Defender for... FAQs

Generated using AI

Last updated: August 15, 2026

### What is the difference between Microsoft Defender for... vs Abnormal AI?

Abnormal AI stands out for higher reviewer satisfaction in detection efficiency, ease of use, and support, while Microsoft Defender for Office 365 is favored for its deep Office 365 integration and broad security features.

| [Microsoft Defender for...](https://www.g2.com/products/microsoft-microsoft-defender-for-office-365/reviews) | [Abnormal AI](https://www.g2.com/products/abnormal-ai/reviews) |
| --- | --- |
| 4.5/5 (299 reviews) | 4.8/5 (78 reviews) |
| Enterprise | Enterprise |
| 8.7 | 9.4 |
| 8.7 | 9.5 |
| Office 365 Integration (8 all-time mentions) | Ease of Use (15 all-time mentions) |

### How do the pricing models of Microsoft Defender for... and Abnormal AI compare?

Abnormal AI is rated higher for value, with reviewers expressing greater satisfaction with its cost-effectiveness compared to Microsoft Defender for Office 365.

- **Microsoft Defender for Office 365:** Reviewers note that advanced features can be costly and licensing is complex, with some expressing concerns about the price for higher-tier plans.
- **Abnormal AI:** Reviewers highlight Abnormal AI as cost-effective and high-performing, with several switching from more expensive or less effective alternatives like Cisco and Barracuda due to better value and performance.

### What are the best alternatives to Microsoft Defender for... and Abnormal AI?

Proofpoint Core Email Protection, SpamTitan Email Security, and Mimecast Advanced Email Security are the top alternatives to Microsoft Defender for Office 365 and Abnormal AI.

| Product | G2 Rating (reviews) | Largest Segment | Pricing Insight | Top Reviewer-Cited Strength |
| --- | --- | --- | --- | --- |
| [Microsoft Defender for...](https://www.g2.com/products/microsoft-microsoft-defender-for-office-365/reviews) | 4.5/5 (299) | Enterprise | Advanced features can be costly | Office 365 Integration |
| [Abnormal AI](https://www.g2.com/products/abnormal-ai/reviews) | 4.8/5 (78) | Enterprise | Cost-effective and high-performing | Ease of Use |
| [Proofpoint Core Email Protection](https://www.g2.com/products/proofpoint-core-email-protection/reviews) | 4.6/5 (601) | Enterprise | — | Comprehensive threat protection |
| [SpamTitan Email Security](https://www.g2.com/products/spamtitan-email-security/reviews) | 4.5/5 (199) | Small-Business | — | Spam filtering accuracy |
| [Mimecast Advanced Email Security](https://www.g2.com/products/mimecast-advanced-email-security/reviews) | 4.4/5 (350) | Mid-Market | — | Phishing protection |

### Which Email Anti-spam features should I prioritize when comparing Microsoft Defender for... and Abnormal AI?

Buyers should prioritize detection efficiency, ease of use, integration capabilities, support quality, and false positive management when comparing Microsoft Defender for Office 365 and Abnormal AI.

- **Detection Efficiency:** Microsoft Defender for Office 365 (5 all-time mentions), Abnormal AI (11 all-time mentions)
- **Ease of Use:** Microsoft Defender for Office 365 (9 all-time mentions), Abnormal AI (15 all-time mentions)
- **Integration Capabilities:** Microsoft Defender for Office 365 (7 all-time mentions), Abnormal AI (6 all-time mentions)
- **Support Quality:** Microsoft Defender for Office 365 (no all-time count), Abnormal AI (12 all-time mentions)
- **False Positive Management:** Microsoft Defender for Office 365 (6 all-time mentions), Abnormal AI (recent reviews highlight minimal false positives)

### What are the pros and cons of Microsoft Defender for... vs Abnormal AI?

Abnormal AI's headline strength is ease of use and detection efficiency, while Microsoft Defender for Office 365 is strongest in Office 365 integration and broad security coverage.

- **Microsoft Defender for Office 365 strengths:** Office 365 integration (8 all-time mentions), security (9), email security (8), phishing protection (6), real-time protection (5), AI technology (4), monitoring (6), detection efficiency (5).
- **Microsoft Defender for Office 365 trade-offs:** Complexity (8 all-time mentions), false positives (6), configuration difficulties (4), limited reporting (4).
- **Abnormal AI strengths:** Ease of use (15 all-time mentions), detection efficiency (11), customer support (12), easy setup (12), reliability (10), filtering efficiency (7), AI technology (7), time-saving (7), Office 365 integration (6), security (7).
- **Abnormal AI trade-offs:** Recent reviews mention occasional false positives and a desire for more customizable reporting and dashboard features.

### Is Microsoft Defender for... or Abnormal AI better for small businesses?

SpamTitan Email Security is the top alternative with the strongest small-business segment, but between Microsoft Defender for Office 365 and Abnormal AI, both primarily serve the enterprise segment.

- **Microsoft Defender for Office 365:** Largest segment is Enterprise; reviewers highlight its integration with Office 365 and broad security features, but note complexity and configuration challenges for smaller teams.
- **Abnormal AI:** Largest segment is Enterprise; reviewers praise its ease of use, minimal manual intervention, and fast setup, which can benefit small teams, but the primary focus remains on larger organizations.

### Which Email Anti-spam platform has better integrations?

Abnormal AI is favored for integrations, with more reviewer-cited third-party connections and higher all-time mention counts.

- **Microsoft Defender for Office 365:** Microsoft 365 integration (13 all-time mentions).
- **Abnormal AI:** Box (15 all-time mentions), Google (2), Microsoft Teams (1); reviewers highlight integration with Microsoft 365 and CrowdStrike as well.

### How do Microsoft Defender for... and Abnormal AI compare on customer support?

Abnormal AI is rated higher for Quality of Support, with a 0.8-point advantage over Microsoft Defender for Office 365.

- **Microsoft Defender for Office 365:** Reviewers note support can be slow to respond and lacks direct hotline access, with some expressing frustration over resolution times.
- **Abnormal AI:** Reviewers consistently praise responsive, knowledgeable, and helpful support, with 12 all-time mentions and frequent positive feedback on customer success management.

### Which is easier to implement, Microsoft Defender for... or Abnormal AI?

Abnormal AI is rated higher for Ease of Setup, with a 0.7-point advantage over Microsoft Defender for Office 365.

- **Microsoft Defender for Office 365:** Reviewers describe setup as straightforward for those already using Microsoft 365, but note complexity in advanced policy configuration and a learning curve for new administrators.
- **Abnormal AI:** Reviewers consistently highlight very easy and fast setup, often completed in minutes, with minimal manual configuration and strong onboarding support.

### Which product has better Quarantine?

Abnormal AI is favored for Quarantine, with reviewers citing higher accuracy and less manual queue management compared to Microsoft Defender for Office 365.

- **Microsoft Defender for Office 365:** Quarantine and ZAP features are frequently mentioned, but reviewers note false positives and the need for manual review.
- **Abnormal AI:** Reviewers highlight minimal false positives, accurate threat detection, and reduced time spent managing quarantined emails, with 11 all-time mentions for detection efficiency and 15 for ease of use.