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Work

protected.

Work

protected.

It’s not just data. It’s everything worth protecting: the code you shipped, the customer records, the new IP. We protect it from the inbox to every AI agent.

Book a demo

White paper: AI Risk Framework

Attacks look legitimate

AI uploads & pastes per hour

of organizations run shadow AI

work is changing

one platform.
humans, data & AI.

As work expands beyond the inbox, your security needs to move faster than threats.

We secure humans

For 21 years, we made email safe, reliable, and continuous. 42,000 organizations. Now we’re turning our 27 million users into your strongest line of defense by neutralizing human risk.

We secure data

We process 24 trillion data points a year and understand the connections better than anyone. We secure organizations with proactive protection across every communication channel and platform.

We secure AI

AI agents now move through your organization with human-level permissions and inhuman speed. We give you the visibility and control to govern every agent so your AI works for you, not against you.

work is changing

Mimecast Apex weighs risk into one view

Our cybersecurity platform connects across email, communications, behavior, data, and AI. ApexIQ is the shared intelligence layer underneath all of it.

See it in action

Email & Collaboration Security
Stop phishing, BEC, impersonation, account takeover and collaboration attacks.
Data Protection
Stop data from leaving, wherever it’s headed: an endpoint, the cloud, or straight into an AI tool.
AI Security & Governance
Treat agents as humans, investigate at machine speed, and govern how people use AI in one platform.
Security Behavior Management
Reduce human risk with a real-time nudge and targeted training that stops mistakes before they happen.
Data Governance
Stay ahead of compliance with AI tools that handle data archiving, management, and investigation.

Email & Collaboration Security
Stop phishing, BEC, impersonation, account takeover and collaboration attacks.
Data Protection
Stop data from leaving, wherever it’s headed: an endpoint, the cloud, or straight into an AI tool.
AI Security & Governance
Treat agents as humans, investigate at machine speed, and govern how people use AI in one platform.
Security Behavior Management
Reduce human risk with a real-time nudge and targeted training that stops mistakes before they happen.
Data Governance
Stay ahead of compliance with AI tools that handle data archiving, management, and investigation.

Email & Collaboration Security
Stop phishing, BEC, impersonation, account takeover and collaboration attacks.
Data Protection
Stop data from leaving, wherever it’s headed: an endpoint, the cloud, or straight into an AI tool.
AI Security & Governance
Treat agents as humans, investigate at machine speed, and govern how people use AI in one platform.
Security Behavior Management
Reduce human risk with a real-time nudge and targeted training that stops mistakes before they happen.
Data Governance
Stay ahead of compliance with AI tools that handle data archiving, management, and investigation.

Integrate & Optimize

Integrate and scale with your existing tech stack

Mimecast integrates with the identity, endpoint, SIEM, SOAR and IT-service platforms you already run, so threat and risk signals flow both ways and your team can act from the tools they know.

Explore integrations

Built for customers at every stage of business

Explore stories

“
We are very impressed with both the technology and how Mimecast implemented the solution in a phased approach.
Chief Information Officer
Bidvest Bank
“
We believe Mimecast’s offering is years ahead in terms of threat protection, and we have seen impressive security improvements, including a reduction in cyberthreats.
Financial Services · Enterprise
Global Wealth Management Firm
“
It’s really important to have a gold-standard of support from our vendors. I can’t speak highly enough of the Mimecast support team and the quality of documentation.
Chief Technology Officer
Prospect Capital Management
“
It’s easy to tell when someone is doing something out of the ordinary, like moving files that contain customer or merchant partner information or IP to a personal drive.
Sr. Manager of IT Operations
Snap Finance
“
Staffing health facilities is time-sensitive work, and if email isn’t running smoothly, that could be the difference between securing a placement and not.
Manager of Network and Security
Health Carousel
“
Mimecast has changed the way everyone in the organization uses email, and as the CIO, I never have to worry about it anymore.
Head of Information Security
GenesisCare
“
Moving to Mimecast has modernized, consolidated and transformed how the State of Oklahoma handles email security.
State Chief Information Security Officer
State of Oklahoma
“
The big thing we were trying to solve was that we had no idea where our data was going. We just had no visibility whatsoever. It was honestly just like running around with blinders on.
Security Analyst
Lyft

“
We are very impressed with both the technology and how Mimecast implemented the solution in a phased approach.
Chief Information Officer
Bidvest Bank
“
We believe Mimecast’s offering is years ahead in terms of threat protection, and we have seen impressive security improvements, including a reduction in cyberthreats.
Financial Services · Enterprise
Global Wealth Management Firm
“
It’s really important to have a gold-standard of support from our vendors. I can’t speak highly enough of the Mimecast support team and the quality of documentation.
Chief Technology Officer
Prospect Capital Management
“
It’s easy to tell when someone is doing something out of the ordinary, like moving files that contain customer or merchant partner information or IP to a personal drive.
Sr. Manager of IT Operations
Snap Finance
“
Staffing health facilities is time-sensitive work, and if email isn’t running smoothly, that could be the difference between securing a placement and not.
Manager of Network and Security
Health Carousel
“
Mimecast has changed the way everyone in the organization uses email, and as the CIO, I never have to worry about it anymore.
Head of Information Security
GenesisCare
“
Moving to Mimecast has modernized, consolidated and transformed how the State of Oklahoma handles email security.
State Chief Information Security Officer
State of Oklahoma
“
The big thing we were trying to solve was that we had no idea where our data was going. We just had no visibility whatsoever. It was honestly just like running around with blinders on.
Security Analyst
Lyft

Resources

Securing the Agentic Enterprise: An AI Agent Risk Framework

A framework for AI-era human and machine risk — and a practical roadmap for the security leaders responsible for both.

Read now

Resources

Securing the Agentic Enterprise: An AI Agent Risk Framework

A framework for AI-era human and machine risk — and a practical roadmap for the security leaders responsible for both.

Read now

Ebook

The State of Human Risk 2026

Email & Collaboration Threat Protection

Analyst Report

2025 Gartner® Magic Quadrant™ for DCGAS

Data Governance

Research

Global Threat Intelligence Report 2025

Threat Intelligence

Mimecast is a cybersecurity and governance platform that defends against human and AI threats across every channel. Our products keep your work protected.

Responsible Disclosure

Work

protected.

Work

protected.

one platform.humans, data & AI.

We secure humans

We secure data

We secure AI

We are very impressed with both the technology and how Mimecast implemented the solution in a phased approach.

We believe Mimecast’s offering is years ahead in terms of threat protection, and we have seen impressive security improvements, including a reduction in cyberthreats.

It’s really important to have a gold-standard of support from our vendors. I can’t speak highly enough of the Mimecast support team and the quality of documentation.

It’s easy to tell when someone is doing something out of the ordinary, like moving files that contain customer or merchant partner information or IP to a personal drive.

Staffing health facilities is time-sensitive work, and if email isn’t running smoothly, that could be the difference between securing a placement and not.

Mimecast has changed the way everyone in the organization uses email, and as the CIO, I never have to worry about it anymore.

Moving to Mimecast has modernized, consolidated and transformed how the State of Oklahoma handles email security.

The big thing we were trying to solve was that we had no idea where our data was going. We just had no visibility whatsoever. It was honestly just like running around with blinders on.

We are very impressed with both the technology and how Mimecast implemented the solution in a phased approach.

We believe Mimecast’s offering is years ahead in terms of threat protection, and we have seen impressive security improvements, including a reduction in cyberthreats.

It’s really important to have a gold-standard of support from our vendors. I can’t speak highly enough of the Mimecast support team and the quality of documentation.

It’s easy to tell when someone is doing something out of the ordinary, like moving files that contain customer or merchant partner information or IP to a personal drive.

Staffing health facilities is time-sensitive work, and if email isn’t running smoothly, that could be the difference between securing a placement and not.

Mimecast has changed the way everyone in the organization uses email, and as the CIO, I never have to worry about it anymore.

Moving to Mimecast has modernized, consolidated and transformed how the State of Oklahoma handles email security.

The big thing we were trying to solve was that we had no idea where our data was going. We just had no visibility whatsoever. It was honestly just like running around with blinders on.

one platform.
humans, data & AI.