CISO Tribune

Vendor comparison · 2 companies

Egress vs Trustifi

Egress, a KnowBe4 company, is a cloud email security provider that says it continuously assesses human risk and dynamically adapts policy controls, defending against advanced phishing attacks and outbound data breaches. Trustifi sells a platform that uses AI, behavioral analysis and threat intelligence to detect phishing, business email compromise and malicious content across email, Teams, OneDrive and SharePoint. CISO Tribune files both under Email security and Data loss prevention. This page sets the two records side by side: what each sells, where it is based, who owns and funds it, the customers it names and its recent news, each fact numbered to its source.

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  • Egress
  • Trustifi
Egress vs Trustifi: Products, Customers and Funding Compared
EgressEgress, a KnowBe4 company, is a cloud email security provider that says it continuously assesses human risk and dynamically adapts policy controls, defending against advanced phishing attacks and outbound data breaches.egress.comTrustifiTrustifi sells a platform that uses AI, behavioral analysis and threat intelligence to detect phishing, business email compromise and malicious content across email, Teams, OneDrive and SharePoint.trustifi.com
What it sells
  • Defend[4][6][7][8][9][13]Inbound email security that stops advanced phishing attacks.
  • Prevent[4][7][10][13]Stops accidental and malicious data loss.
  • Protect[4][7]Secure, certified end-to-end email encryption.
  • Workspace[4][7]Collaborate and share securely.
  • Outbound Shield[2][3][9]Scans and encrypts outgoing email according to administrators' policies.
  • Account Takeover Protection[2][5][11]Monitors and reports suspicious user email behavior using AI engines.
  • Email Security Awareness Training[12]Email security awareness training platform for staff.
Categories
Headquarters
London, United Kingdom[3]Not stated on its pages
Founded
2007[3]Not stated on its pages
Ownership and funding
Owned by KnowBe4 since 2024[1][2][4][5][6]Privately held[1][4]
Named customers
Not stated on its pagesNot stated on its pages
Recent news
Not stated on its pagesNot stated on its pages
G2 and Gartner Peer Insights
  • G2: listed, seen October 24, 2026[5]
  • Gartner Peer Insights: Not stated on its pages
  • G2: listed, seen November 3, 2026[4]
  • Gartner Peer Insights: Not stated on its pages
Who it fits
From its own pages, the company sells to customers it says it prepares to defend against attacks and breaches before they happen. Defend is offered to those who need to stop advanced phishing attacks. Prevent is offered to those who need to stop accidental and malicious data loss. Protect is offered to those who need secure, certified end-to-end email encryption.Not written yet
Last verified
November 2, 2026September 27, 2026

Where they overlap

  • Email security is the primary category of both Egress and Trustifi; both are also filed under Data loss prevention.

Where they differ, field by field

  • Egress is also filed under Human risk management. Trustifi is also filed under Collaboration app security and Security awareness training.
  • Egress lists Defend, Prevent, Protect and Workspace. Trustifi lists Outbound Shield, Account Takeover Protection and Email Security Awareness Training.
  • Egress is headquartered in London, United Kingdom.
  • Egress was founded in 2007.
  • Egress is owned by KnowBe4, since 2024. Trustifi is privately held.

How they differ

CISO Tribune files Egress under Email security, Data loss prevention and Human risk management, with Email security as its primary category. CISO Tribune files Trustifi under Email security, Data loss prevention, Collaboration app security and Security awareness training, also with Email security as its primary category. Egress sells Defend for inbound email security, Prevent for stopping accidental and malicious data loss, Protect for end-to-end email encryption, and Workspace for sharing securely. Trustifi sells Outbound Shield, which scans and encrypts outgoing email according to administrators' policies, along with Account Takeover Protection and Email Security Awareness Training.

Both companies cover outbound data protection and email encryption in some form, but the products are shaped differently. Egress Prevent lets administrators set a risk appetite for data exfiltration and can block activity, warn users, or monitor without notifying them. Trustifi also describes collaboration security across Teams, OneDrive and SharePoint. Trustifi Account Takeover Protection uses machine learning to profile typical login behavior and notifies administrators when compromised access is detected.

Egress is headquartered in London, United Kingdom, was founded in 2007, and has been owned by KnowBe4 since 2024. KnowBe4 was taken private by Vista Equity Partners and raised $300 million in a round led by KKR. Trustifi is privately held. A customer quoted by KnowBe4 selected Defend and Prevent as added security layers in its Microsoft 365 environment. Trustifi says deployment takes minutes by API or Email Relay, or on any email server.

What it sells: Egress

What Defend does[4][6][7][8][9][13]
Defend is KnowBe4's inbound email security solution. Defend uses AI and natural language processing to map historical communication patterns and identify anomalies. Defend rewrites links and checks them at time of click, and detects QR codes within email.
What Prevent does[4][7][10][13]
Prevent lets security administrators configure their risk appetite for data exfiltration. Prevent can block activity, warn users, or monitor user activity without end-user notification. Prevent analyzes attachments for sensitive content and verifies them against the intended recipients.
What Protect does[4][7]
Protect is secure, certified end-to-end email encryption. Protect is one of the KnowBe4 Cloud Email Security products covered by the Security Center.

What it sells: Trustifi

What Outbound Shield does[2][3][9]
Outbound Shield automatically scans and encrypts outgoing email messages according to administrators' policies. Emails that contain sensitive information are automatically secured.
What Account Takeover Protection does[2][5][11]
Account takeover protection monitors and reports suspicious company user email behavior, using AI engines. It employs machine learning to profile typical login behavior. Security account administrators are notified automatically when compromised access to a user login account is detected.

Questions about Egress and Trustifi

What do Egress and Trustifi sell?
Egress sells Defend, Prevent, Protect and Workspace. Trustifi sells Outbound Shield, Account Takeover Protection and Email Security Awareness Training.
Are Egress and Trustifi in the same category?
Yes. Email security is the primary category of both on CISO Tribune.
Where are Egress and Trustifi headquartered?
Egress is headquartered in London, United Kingdom.
When were Egress and Trustifi founded?
Egress was founded in 2007.
Who owns Egress and Trustifi?
Egress is owned by KnowBe4, since 2024. Trustifi is privately held.
Who are Egress and Trustifi sold to?
From its own pages, the company sells to customers it says it prepares to defend against attacks and breaches before they happen.

About Egress

Egress, a KnowBe4 company, is a cloud email security provider that says it continuously assesses human risk and dynamically adapts policy controls, defending against advanced phishing attacks and outbound data breaches. Egress says it uses contextual machine learning and neural networks, with integration through a cloud-native API architecture. Egress says KnowBe4's acquisition of Egress created the largest AI-driven cybersecurity platform for managing human risk. KnowBe4 says it entered into a definitive agreement to acquire Egress.

Defend is KnowBe4's inbound email security solution. Defend uses AI and natural language processing to map historical communication patterns and identify anomalies. Defend rewrites links and checks them at time of click, and Defend detects QR codes within email. Active and malicious code is automatically disabled from HTML message bodies and attachments. Sender policy verification lookup and validation are performed on every message for SPF, DKIM and DMARC. Defend filters graymail to a separate folder. Defend uses AI to automate inspection of user-reported phishing emails and remediate attacks across the enterprise.[7]

Defend performs time-of-click inspection to detect malicious URLs that are weaponized post-delivery. Phishing is one of the most common attack vectors for ransomware. Egress says 90% of ransomware starts with a phish and that Defend uses AI-powered analysis to stop malicious links and payloads.[8][9]

On the outbound side, security administrators can configure their risk appetite for data exfiltration and deploy KnowBe4 Prevent to block activity, warn users when they are about to contravene policy, or monitor user activity without end-user notification. Prevent uses AI technology to analyze recipients for signals that an address may be a personal account linked to the sender. Prevent analyzes attachments for sensitive content and verifies them against the intended recipients. Administrators can control and report on exfiltration incidents through an approve/reject workflow. Protect is secure, certified end-to-end email encryption, and Workspace is a way to collaborate and share securely. The Security Center is a single portal for risk analysis, reporting and incident triage, investigation and response for the KnowBe4 Cloud Email Security products Defend, Prevent and Protect, including a live threat feed.[7][10]

Defend integrates into Google Workspace and MS Outlook apps on Windows Desktop, Mac, iOS and Android. Defend operates after a SEG, Google or Microsoft 365 has performed analysis. KnowBe4 Cloud Email Security is integrated into Microsoft 365, including support for Mac and OWA users.[7][11]

KnowBe4 says attackers increasingly target attorneys and support staff, who have access to valuable client information. KnowBe4 also addresses financial services organizations, with email and human error as the focus. A customer quoted by KnowBe4 selected Defend and Prevent as added security layers in its Microsoft 365 environment.[12][13]

The KnowBe4 Platform provides attack simulation and training, email and collaboration security, and agent security powered by AIDA (Artificial Intelligence Defense Agents) and a proprietary Risk Score. KnowBe4 says more than 70,000 organizations worldwide trust it. KnowBe4, Inc gives its address as 33 N Garden Ave, Suite 1200, Clearwater, FL 33755. Vista Equity Partners took KnowBe4 private, and KnowBe4 raised $300 million in a round led by KKR.[7]

KnowBe4 states that all of its products are SSAE18 SOC 2 Type 2 certified and Cyber Essentials certified. KnowBe4 has been audited against the International Organization for Standardization 27001:2022 standard covering information security controls and the 42001:2023 standard covering AI management systems. KnowBe4 maintains compliance with the GDPR. KnowBe4 uses AWS and Azure for data encryption in transit (TLS) and at rest (AES-GCM 256).[12][14]

Egress on the record

Sources

Egress full record

  1. [1]Knowbe4 to acquire egressKnowBe4 · knowbe4.com · published April 24, 2024 · Tier A
  2. [2]Knowbe4 completes acquisition of egressKnowBe4 · knowbe4.com · published July 9, 2024 · Tier A
  3. [3]Egress software technologies granted patent for secure data exchangeDark Reading · darkreading.com · undated page, accessed September 27, 2026 · Tier B
  4. [4]Egress, a KnowBe4 Company | Anti-Phishing, Data Loss Prevention & EncryptionEgress, a KnowBe4 Company · undated page, accessed October 24, 2026 · Tier A
  5. [5]Egress Solutions Reviews 2026: Details, Pricing, & Features | G2G2 · undated page, accessed October 24, 2026 · Tier C
  6. [6]About Us | KnowBe4KnowBe4 · undated page, accessed November 4, 2026 · Tier A
  7. [7]Defend datasheetKnowBe4 · undated page, accessed November 4, 2026 · Tier A
  8. [8]Stop Account Takeover with Defend | KnowBe4KnowBe4 · undated page, accessed November 4, 2026 · Tier A
  9. [9]Stop Ransomware with Defend | KnowBe4KnowBe4 · undated page, accessed November 4, 2026 · Tier A
  10. [10]Stop Data Exfiltration with Prevent | KnowBe4KnowBe4 · undated page, accessed November 4, 2026 · Tier A
  11. [11]Advanced graymail detection with Defend | KnowBe4KnowBe4 · undated page, accessed November 4, 2026 · Tier A
  12. [12]Secure Your Legal Practice: Humans & AI Agents | KnowBe4KnowBe4 · undated page, accessed November 4, 2026 · Tier A
  13. [13]Financial Services Security Awareness Training | KnowBe4KnowBe4 · undated page, accessed November 4, 2026 · Tier A
  14. [14]Security Statement | Legal | KnowBe4KnowBe4 · undated page, accessed November 4, 2026 · Tier A

Trustifi full record

  1. [1]Trustifi raises 25m series a to scale ai email security platform 302471421Trustifi via PR Newswire · prnewswire.com · published June 3, 2025 · Tier A
  2. [2]ProductsTrustifi · trustifi.com · published September 15, 2026 · Tier A
  3. [3]Integrations · Trustifi DocumentationTrustifi · undated page, accessed October 29, 2026 · Tier A
  4. [4]Trustifi Email Security Reviews & Product DetailsG2 · undated page, accessed October 29, 2026 · Tier C
  5. [5]Trustifi | Better Security for Email and Microsoft Office 365Trustifi · undated page, accessed November 3, 2026 · Tier A
  6. [6]Email Anti Spoofing | Security SoftwareTrustifi · undated page, accessed November 3, 2026 · Tier A
  7. [7]Email Security Services for Companies | AI-Powered Solutions | TrustifiTrustifi · undated page, accessed November 3, 2026 · Tier A
  8. [8]Products and Features | TrustifiTrustifi · undated page, accessed November 3, 2026 · Tier A
  9. [9]Outbound Email Security | TrustifiTrustifi · undated page, accessed November 3, 2026 · Tier A
  10. [10]Collaboration Shield | TrustifiTrustifi · undated page, accessed November 3, 2026 · Tier A
  11. [11]Account Takeover Protection | Compromised Account DetectionTrustifi · undated page, accessed November 3, 2026 · Tier A
  12. [12]Email Security Awareness Training | TrustifiTrustifi · undated page, accessed November 3, 2026 · Tier A
  13. [13]Advanced Cloud Email Archiving | TrustifiTrustifi · undated page, accessed November 3, 2026 · Tier A

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