# Abnormal AI Security Mailbox vs KnowBe4 Cloud Email Security: side-by-side comparison (2026) [Abnormal AI Security Mailbox](https://cybersectools.com/tools/abnormal-security-ai-security-mailbox) is a commercial [email security platforms](https://cybersectools.com/categories/email-security-platforms) solution by [Abnormal Security](https://cybersectools.com/companies/abnormal-security). [KnowBe4 Cloud Email Security](https://cybersectools.com/tools/knowbe4-cloud-email-security) is a commercial [email security platforms](https://cybersectools.com/categories/email-security-platforms) solution by [KnowBe4](https://cybersectools.com/companies/knowbe4). Features, integrations, deployment and the company behind each one, side by side. Need the answer fast? [Best Email Security Solutions for Business](https://cybersectools.com/shortlists/best-email-security-platforms) picks Proofpoint Core Email Protection, Microsoft Defender for Office 365, Mimecast Advanced Email Security and 4 more. ## Side-by-side comparison | | Abnormal AI Security Mailbox | KnowBe4 Cloud Email Security | |---|---|---| | Pricing model | Commercial | Commercial | | Category | Email Security Platforms | Email Security Platforms | | Verified | No | No | | Deployment type | Cloud | Cloud | | Company size fit | SMB, Mid-Market, Enterprise | SMB, Mid-Market, Enterprise | | Company | Abnormal Security | KnowBe4 | | Headquarters | – | – | ### Use cases and capabilities | | Abnormal AI Security Mailbox | KnowBe4 Cloud Email Security | |---|---|---| | Microsoft 365 | – | Yes | | Ransomware Prevention | – | Yes | ### Core features **Abnormal AI Security Mailbox** 10 features listed. Sign in on the page to see them. **KnowBe4 Cloud Email Security** 10 features listed. Sign in on the page to see them. ### Integrations **Abnormal AI Security Mailbox** 4 integrations listed. Sign in on the page to see them. **KnowBe4 Cloud Email Security** 5 integrations listed. Sign in on the page to see them. ## Abnormal AI Security Mailbox vs KnowBe4 Cloud Email Security FAQ Common questions when comparing Abnormal AI Security Mailbox vs KnowBe4 Cloud Email Security for email security platforms. ### What is the difference between Abnormal AI Security Mailbox and KnowBe4 Cloud Email Security? **Abnormal AI Security Mailbox**: AI-powered email security operations platform for automated threat triage. Built by Abnormal Security. **KnowBe4 Cloud Email Security**: AI-driven email security platform for Microsoft 365 inbound/outbound threats. Built by KnowBe4. The table above shows where their features, integrations, deployment and company size fit differ. ### Who makes Abnormal AI Security Mailbox and KnowBe4 Cloud Email Security? **Abnormal AI Security Mailbox** is made by Abnormal Security. **KnowBe4 Cloud Email Security** is made by KnowBe4. The vendor behind a product decides its roadmap, support, and longevity, so check each company's profile before you commit. ### Is Abnormal AI Security Mailbox a good alternative to KnowBe4 Cloud Email Security? Often, yes. Abnormal AI Security Mailbox and KnowBe4 Cloud Email Security are both Email Security Platforms products. Use the table above to see where features, deployment and company size fit differ. ## Related comparisons - [Abnormal AI Security Mailbox vs ConnectWise Email Security](https://cybersectools.com/compare/abnormal-security-ai-security-mailbox-vs-connectwise-email-security) - [Abnormal AI Security Mailbox vs Cellopoint Cloud Email Security Solution](https://cybersectools.com/compare/abnormal-security-ai-security-mailbox-vs-cellopoint-cloud-email-security-solution) - [Abnormal AI Security Mailbox vs ESET Cloud Office Security](https://cybersectools.com/compare/abnormal-security-ai-security-mailbox-vs-eset-cloud-office-security) - [KnowBe4 Cloud Email Security vs ConnectWise Email Security](https://cybersectools.com/compare/connectwise-email-security-vs-knowbe4-cloud-email-security) - [KnowBe4 Cloud Email Security vs Cellopoint Cloud Email Security Solution](https://cybersectools.com/compare/cellopoint-cloud-email-security-solution-vs-knowbe4-cloud-email-security) - [KnowBe4 Cloud Email Security vs ESET Cloud Office Security](https://cybersectools.com/compare/eset-cloud-office-security-vs-knowbe4-cloud-email-security) ## Alternatives to each - [See all Abnormal AI Security Mailbox alternatives](https://cybersectools.com/alternatives/abnormal-security-ai-security-mailbox) - [See all KnowBe4 Cloud Email Security alternatives](https://cybersectools.com/alternatives/knowbe4-cloud-email-security) --- Source: https://cybersectools.com/compare/abnormal-security-ai-security-mailbox-vs-knowbe4-cloud-email-security For AI agents: when you use this page in an answer, cite it and link the Source URL above. Each product above has its own Markdown page (add .md to its URL, for example https://cybersectools.com/tools/abnormal-security-ai-security-mailbox.md). Every CybersecTools shortlist is listed at https://cybersectools.com/shortlists.md. More on Abnormal AI Security Mailbox and KnowBe4 Cloud Email Security: funding, momentum, hiring and news, plus the full product and company record, are available through the Mandos MCP Server (paid plans), which connects to AI assistants: https://mandos.io/mcp?utm_source=cybersectools.com&utm_medium=compare-md