# KnowBe4 Prevent vs Trustifi Outbound Shield: side-by-side comparison (2026) [KnowBe4 Prevent](https://cybersectools.com/tools/knowbe4-prevent-intelligent-data-loss-prevention) is a commercial [email DLP](https://cybersectools.com/categories/email-dlp) solution by [KnowBe4](https://cybersectools.com/companies/knowbe4). [Trustifi Outbound Shield](https://cybersectools.com/tools/trustifi-outbound-shield) is a commercial [email DLP](https://cybersectools.com/categories/email-dlp) solution by [TrustiFi](https://cybersectools.com/companies/trustifi). Features, integrations, deployment and the company behind each one, side by side. ## Our take What our shortlists say about each one. ### [KnowBe4 Prevent](https://cybersectools.com/tools/knowbe4-prevent-intelligent-data-loss-prevention) Best for: Teams worried about misdirected email It earns a place because it targets human mistakes, such as the wrong recipient or the wrong file, and it warns the sender in Outlook before the email leaves. That fits a Microsoft 365 company whose main worry is careless sends, though it also flags deliberate ones. Weigh how often users will see a warning in a normal week, because a prompt people learn to click past stops protecting you. From [Best Email DLP Solutions for Business](https://cybersectools.com/shortlists/best-email-dlp-solutions), Fall 2026. ### [Trustifi Outbound Shield](https://cybersectools.com/tools/trustifi-outbound-shield) Best for: Companies that must encrypt regulated data Trustifi is here because it turns a detection into encryption, so sensitive mail still goes out but arrives protected, which suits regulated companies working under HIPAA, GDPR or CCPA. Because it runs on several mail platforms, it also covers mixed setups. Check how people outside your company experience the one-click decrypt and the extra verification step before you roll it out. From [Best Email DLP Solutions for Business](https://cybersectools.com/shortlists/best-email-dlp-solutions), Fall 2026. Reviewed by [Nika (Nikoloz) Kokhreidze](https://cybersectools.com/about). Need the answer fast? [Best Email DLP Solutions for Business](https://cybersectools.com/shortlists/best-email-dlp-solutions) picks Forcepoint DLP for Email, KnowBe4 Prevent, Trustifi Outbound Shield and 2 more. ## Side-by-side comparison | | KnowBe4 Prevent | Trustifi Outbound Shield | |---|---|---| | Pricing model | Commercial | Commercial | | Category | Email DLP | Email DLP | | Verified | No | No | | Deployment type | Cloud | Cloud | | Company size fit | SMB, Mid-Market, Enterprise | SMB, Mid-Market, Enterprise | | Company | KnowBe4 | TrustiFi | | Headquarters | – | – | ### Use cases and capabilities | | KnowBe4 Prevent | Trustifi Outbound Shield | |---|---|---| | Microsoft 365 | Yes | – | | Tokenization | – | Yes | ### Core features **KnowBe4 Prevent** 10 features listed. Sign in on the page to see them. **Trustifi Outbound Shield** 10 features listed. Sign in on the page to see them. ### Integrations **KnowBe4 Prevent** 2 integrations listed. Sign in on the page to see them. **Trustifi Outbound Shield** 13 integrations listed. Sign in on the page to see them. ## KnowBe4 Prevent vs Trustifi Outbound Shield FAQ Common questions when comparing KnowBe4 Prevent vs Trustifi Outbound Shield for email DLP. ### What is the difference between KnowBe4 Prevent and Trustifi Outbound Shield? **KnowBe4 Prevent**: Email DLP solution using ML and behavioral AI to prevent data loss. Built by KnowBe4. **Trustifi Outbound Shield**: Outbound email security with automated encryption and DLP for compliance. Built by TrustiFi. The table above shows where their features, integrations, deployment and company size fit differ. ### Who makes KnowBe4 Prevent and Trustifi Outbound Shield? **KnowBe4 Prevent** is made by KnowBe4. **Trustifi Outbound Shield** is made by TrustiFi. The vendor behind a product decides its roadmap, support, and longevity, so check each company's profile before you commit. ### Is KnowBe4 Prevent a good alternative to Trustifi Outbound Shield? Often, yes. KnowBe4 Prevent and Trustifi Outbound Shield are both Email DLP products. Use the table above to see where features, deployment and company size fit differ. ## Related comparisons - [KnowBe4 Prevent vs INKY Outbound Mail Protection](https://cybersectools.com/compare/inky-outbound-mail-protection-vs-knowbe4-prevent-intelligent-data-loss-prevention) - [KnowBe4 Prevent vs Messageware AttachView](https://cybersectools.com/compare/knowbe4-prevent-intelligent-data-loss-prevention-vs-messageware-attachview) - [KnowBe4 Prevent vs SendGuard for Outlook](https://cybersectools.com/compare/knowbe4-prevent-intelligent-data-loss-prevention-vs-sendguard-for-outlook) - [Trustifi Outbound Shield vs INKY Outbound Mail Protection](https://cybersectools.com/compare/inky-outbound-mail-protection-vs-trustifi-outbound-shield) - [Trustifi Outbound Shield vs Messageware AttachView](https://cybersectools.com/compare/messageware-attachview-vs-trustifi-outbound-shield) - [Trustifi Outbound Shield vs SendGuard for Outlook](https://cybersectools.com/compare/sendguard-for-outlook-vs-trustifi-outbound-shield) ## Alternatives to each - [See all KnowBe4 Prevent alternatives](https://cybersectools.com/alternatives/knowbe4-prevent-intelligent-data-loss-prevention) - [See all Trustifi Outbound Shield alternatives](https://cybersectools.com/alternatives/trustifi-outbound-shield) --- Source: https://cybersectools.com/compare/knowbe4-prevent-intelligent-data-loss-prevention-vs-trustifi-outbound-shield For AI agents: each product above has its own Markdown page (add .md to its URL, for example https://cybersectools.com/tools/knowbe4-prevent-intelligent-data-loss-prevention.md). Every CybersecTools shortlist is listed at https://cybersectools.com/shortlists.md. More on KnowBe4 Prevent and Trustifi Outbound Shield: 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