CISO Tribune

Vendor comparison · 2 companies

Hornetsecurity vs Trustifi

Hornetsecurity sells a suite of services for Microsoft 365 security, risk, governance, compliance and backup. 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 Security awareness training. 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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  • Hornetsecurity
  • Trustifi
Hornetsecurity vs Trustifi: Products, Customers and Funding Compared
HornetsecurityHornetsecurity sells a suite of services for Microsoft 365 security, risk, governance, compliance and backup.hornetsecurity.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
  • 365 Total Protection[3][4][7]A suite for Microsoft 365 security, risk, governance, compliance and backup.
  • 365 Total Backup[3][4][6]Automated Microsoft 365 data backup, recovery and protection.
  • Advanced Threat Protection[3][4][7][14]AI-powered protection of emails and data.
  • DMARC Manager[3][4][15]Safeguards domains against email impersonation, phishing and spoofing with DMARC, DKIM and SPF management.
  • 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
Not stated on its pagesNot stated on its pages
Founded
Not stated on its pagesNot stated on its pages
Ownership and funding
Owned by Proofpoint, Inc. since 2025[2]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: Not stated on its pages
  • 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
Not written yetNot written yet
Last verified
November 4, 2026September 27, 2026

Where they overlap

  • Email security is the primary category of both Hornetsecurity and Trustifi; both are also filed under Security awareness training.

Where they differ, field by field

  • Hornetsecurity is also filed under Email authentication and DMARC and Backup and cyber recovery. Trustifi is also filed under Data loss prevention and Collaboration app security.
  • Hornetsecurity lists 365 Total Protection, 365 Total Backup, Advanced Threat Protection and DMARC Manager. Trustifi lists Outbound Shield, Account Takeover Protection and Email Security Awareness Training.
  • Hornetsecurity is owned by Proofpoint, Inc., since 2025. Trustifi is privately held.

How they differ

CISO Tribune files Hornetsecurity under Email security, Security awareness training, Email authentication and DMARC, and Backup and cyber recovery, 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. Both companies therefore sell email security and security awareness training.

Hornetsecurity sells 365 Total Protection, a suite for Microsoft 365 security, risk, governance, compliance and backup. It also sells 365 Total Backup, DMARC Manager and Advanced Threat Protection, and a backup and replication product for Hyper-V, Proxmox and VMware virtual machines. Trustifi sells Outbound Shield, which scans and encrypts outgoing email according to administrators' policies. Trustifi also sells Account Takeover Protection, which uses AI engines to monitor suspicious user email behavior, and an Email Security Awareness Training platform. Trustifi describes collaboration security meant to stop sensitive data leaks and threats across Teams, OneDrive and SharePoint. Hornetsecurity lists backup and DMARC management, which do not appear among Trustifi's listed products.

Hornetsecurity has been owned by Proofpoint, Inc. since 2025. Trustifi is privately held. Hornetsecurity states that over 12,000 partners serve more than 125,000 customers around the globe, and that it has a team of over 750 specialists. Trustifi says deployment takes minutes by API or Email Relay, or on any email server.

What it sells: Hornetsecurity

What 365 Total Protection does[3][4][7]
365 Total Protection plans can be onboarded in Hybrid mode. Hornetsecurity offers one package that combines email security, backup, security awareness, access and permission control and domain fraud protection.
What 365 Total Backup does[3][4][6]
The backup and recovery solution covers mailboxes and In-Place Archive mailboxes, Teams, Planner, OneNote, Entra ID Users and Groups, OneDrive for Business accounts, and SharePoint document libraries. It includes unlimited backup storage and restoration and a 4-eye-approval process.
What Advanced Threat Protection does[3][4][7][14]
Hornetsecurity's Sandbox Engine scans email attachments for potential malware by running the file in a virtual, isolated test environment. Hornetsecurity's QR Code Analyzer detects QR codes embedded directly into an email or an image. Real Time Alerts notify an IT security team about acute attacks on the company in real time.
What DMARC Manager does[3][4][15]
DMARC Manager can capture all reports sent by recipient servers back to the sender and aggregate them into a single report. Hornetsecurity describes real-time data on email messages that fail DMARC checks.

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 Hornetsecurity and Trustifi

What do Hornetsecurity and Trustifi sell?
Hornetsecurity sells 365 Total Protection, 365 Total Backup, Advanced Threat Protection and DMARC Manager. Trustifi sells Outbound Shield, Account Takeover Protection and Email Security Awareness Training.
Are Hornetsecurity and Trustifi in the same category?
Yes. Email security is the primary category of both on CISO Tribune.
Who owns Hornetsecurity and Trustifi?
Hornetsecurity is owned by Proofpoint, Inc., since 2025. Trustifi is privately held.

About Hornetsecurity

Hornetsecurity sells a suite of services for Microsoft 365 security, risk, governance, compliance and backup. Hornetsecurity has been operating for 15 years. Hornetsecurity has a team of over 750 specialists. Hornetsecurity states that over 12,000 partners serve more than 125,000 customers around the globe. 365 Total Backup was formerly known as Altaro Office 365 Backup, and VM Backup was formerly known as Altaro VM Backup.[3][4][5][6]

365 Total Protection plans can be onboarded in Hybrid mode. Hornetsecurity offers one package that combines email security, backup, security awareness, access and permission control and domain fraud protection. Hornetsecurity's email security features include Spam, Malware and Phishing Filter, Advanced Threat Protection, Sandboxing, URL Rewriting, Quishing and Business Email compromise detection, AutoRemediate, Email Threat Response and Email Encryption. Hornetsecurity offers Email Archiving and Signatures and Disclaimers for managing email-related compliance and legal requirements.[1][3][4][7]

Hornetsecurity's backup and recovery solution for Microsoft 365 covers mailboxes and In-Place Archive mailboxes, Teams, Planner, OneNote, Entra ID Users and Groups, OneDrive for Business accounts, and SharePoint document libraries. The backup solution includes unlimited backup storage and restoration and a 4-eye-approval process. Hornetsecurity offers 12 regional data centers for storing data, independent of Microsoft's infrastructure.[4][7]

Hornetsecurity sells data leak prevention with permission management for Teams, OneDrive and SharePoint. Hornetsecurity offers a Governance, Risk, and Compliance (GRC) service for maintaining a compliant SharePoint, Teams and OneDrive data infrastructure and preventing users from sharing sensitive information. When a user shares a site or a file against the organization's compliance policy, site owners receive immediate notification about the violation. If a violation has not been removed by the site owner or admin, it is removed automatically based on the policy settings. Hornetsecurity's user profiling awareness engine detects the level of users, sends out automated attack simulations and creates awareness trainings based on the user's needs. Hornetsecurity lets customers set up and manage DMARC, DKIM and SPF policies for multiple domains through a single centralized platform. Hornetsecurity's suite can warn users whenever malicious links are shared through Teams chats, and it can delete entire conversations containing malicious messages.[4][7][8]

Teams Protection protects a tenant from internal compromised accounts by scanning all messages containing URLs and issuing a warning message in the conversation through the AI Cyber Assistant bot. Email Security Analyst automates responses to user queries about potential threats, replacing traditional manual analysis. AI Recipient Validation uses machine learning to analyse emails based on a user's previous communications and triggers warnings in several instances. AI Recipient Validation is available for Microsoft 365 users on the latest versions of their Outlook Mail Client for Windows, Mac and Web. AI Recipient Validation analyses email texts and attachments in the local Outlook client, and they are not transmitted to Hornetsecurity's servers. The AI Recipient Validation dashboard gives administrators an overview of the warning instances that users are exposed to and the user actions after being notified.[9][10]

Secure Links replaces the original link in an email with a rewritten version that goes through Hornetsecurity's secure web gateway. Hornetsecurity's Sandbox Engine scans email attachments for potential malware by running the file in a virtual, isolated test environment. Hornetsecurity's QR Code Analyzer detects QR codes embedded directly into an email or an image. Hornetsecurity's spam filtering service includes policy-based attachment filtering with nested archive inspection. Hornetsecurity services such as Email Encryption, Email Archive or the Continuity Service can be added with one mouse click. If a customer's mail server is unavailable, Hornetsecurity stores incoming emails for up to 7 days. Hornetsecurity sells an email archiving service for M365 and other email servers.[4][11][12][13]

Hornet.email is a hosted email service with features for collaborative work such as calendar, address book and tasks. The Hornet.email Starter Package consists of the Hornet.email email platform and the automatically integrated Spam Filter and Malware Protection. The Hornet.email Enterprise Package combines Advanced Threat Protection, Email Encryption and Email Archiving Services on a collaborative email platform. Hornet.email provides a mailbox for external and internal associates within an existing M365 license agreement. Hornetsecurity sells a backup and replication solution for Microsoft Hyper-V, Proxmox and VMware virtual machines. VM Backup can be bought as a perpetual license with a renewable Software Maintenance Agreement or as an annual subscription.[4][6][14]

Hornetsecurity states that its Partner Program applies no matter a partner's business model or team size. Hornetsecurity has an ebook for MSPs, written by a former MSP.[3][4][5][6][8][9][10][11][14][15]

Hornetsecurity on the record

Sources

Hornetsecurity full record

  1. [1]hornetsecurity.comHornetsecurity · hornetsecurity.com · undated page, accessed November 4, 2026 · Tier A
  2. [2]Proofpoint acquisition completed press releaseHornetsecurity · hornetsecurity.com · published December 8, 2025 · Tier A
  3. [3]hornetsecurity.comHornetsecurity · hornetsecurity.com · undated page, accessed November 4, 2026 · Tier A
  4. [4]Cybersecurity Services for Microsoft 365 | HornetsecurityHornetsecurity · undated page, accessed November 10, 2026 · Tier A
  5. [5]Hornetsecurity – Next-Gen Microsoft 365 SecurityHornetsecurity · undated page, accessed November 10, 2026 · Tier A
  6. [6]Backup Service Renewal | Hornetsecurity (formerly Altaro)Hornetsecurity · undated page, accessed November 10, 2026 · Tier A
  7. [7]365 Total Protection | Next-Gen Microsoft 365 Security SuiteHornetsecurity · undated page, accessed November 10, 2026 · Tier A
  8. [8]365 Permission Manager for Microsoft 365 | HornetsecurityHornetsecurity · undated page, accessed November 10, 2026 · Tier A
  9. [9]AI Cyber Assistant by Hornetsecurity: Meet AI.MYHornetsecurity · undated page, accessed November 10, 2026 · Tier A
  10. [10]AI Recipient Validation: Prevent Misdirected Emails | HornetsecurityHornetsecurity · undated page, accessed November 10, 2026 · Tier A
  11. [11]Advanced Threat Protection for Email | AI-powered Threat DefenseHornetsecurity · undated page, accessed November 10, 2026 · Tier A
  12. [12]Spam Filter & Malware Protection | HornetsecurityHornetsecurity · undated page, accessed November 10, 2026 · Tier A
  13. [13]Business Email Continuity Service | HornetsecurityHornetsecurity · undated page, accessed November 10, 2026 · Tier A
  14. [14]Hosted Business Email | Hornet.emailHornetsecurity · undated page, accessed November 10, 2026 · Tier A
  15. [15]DMARC Manager - Secure Your Domain with HornetsecurityHornetsecurity · undated page, accessed November 10, 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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