Mimecast’s cover photo
Mimecast

Mimecast

Computer and Network Security

London, England 124,264 followers

We secure humans, data & AI. To protect your work.

About us

42,000 organizations. 175+ countries. 27 million people. For over 20 years, Mimecast protected the channel where work was most concentrated. The channel has changed. Today we're a unified platform that secures humans, data, and AI — because the attack surface is no longer a network. It is the workforce itself, now joined by AI agents that act with human permission and move at machine pace. Every employee. Every agent. Every file they touch. All of it protected so the work people do, and the work they do with AI, stays whole. Work Protected.

Website
https://www.mimecast.com/
Industry
Computer and Network Security
Company size
1,001-5,000 employees
Headquarters
London, England
Type
Privately Held
Founded
2003
Specialties
Email Security, Email Continuity, Email Archiving, Services for Microsoft Office 365, Web Security, Cyber Resilience, Awareness Training, and Human Risk Management

Locations

Employees at Mimecast

Updates

  • View organization page for Mimecast

    124,264 followers

    We're live at CrowdStrike's Fal.Con 2026! Make sure to stop by Booth #1322 👋 Greg Thibault and Marie Scime just wrapped their session on how Mimecast and CrowdStrike unify email, endpoint, and human risk into one closed-loop defense. Don't miss tomorrow at 11am: CEO Ranjan S. dives into why 8% of your workforce drives 80% of your risk, how AI is multiplying it through unsanctioned GenAI tools, and where that risk really concentrates: in the humans, the AI agents, and the data moving between them. We'll see you there!

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  • "It's time to retire the phrase that the human is the weakest link." At Black Hat, our Chief Product & Technology Officer, Rob Juncker told Dark Reading's Joan Goodchild that the workplace has moved so fast, we've quietly started expecting humans to be perfect. His challenge to the industry: design the principles and the frictionless environment humans need to move at that speed, securely. Watch the full interview here 👉 https://lnkd.in/gPKE4c3g

  • View organization page for Mimecast

    124,264 followers

    Keep an eye out for these cars in Vegas next week. We're headed to CrowdStrike's Fal.Con, Booth #1322. And don't miss our speaking sessions: 🗓️ Tue, Sep 1 | 12:15–12:35 PM Greg Thibault, Senior Customer Value Manager, and Marie Scime, Senior Manager of GTM Programs for Global Alliances, will explore how Mimecast and CrowdStrike unify email, endpoint, and human risk into one closed-loop defense. 🗓️ Wed, Sep 2 | 11:00–11:45 AM Ranjan S., CEO, will discuss why 8% of your workforce drives 80% of your risk, how unsanctioned GenAI tools are multiplying it, and where it really concentrates: the humans, the AI agents, and the data moving between them. Don't leave Fal.Con without talking to us. Book your meeting today: https://lnkd.in/dHDdjz54

  • That link looks safe. It came from a name you trust. That's exactly the problem. 👀 Our Threat Research team uncovered nine distinct ways attackers are exploiting a major tech platform's URL redirect service, borrowing its trusted domain reputation to slip malicious links straight past email security controls. Here's what you need to know: https://lnkd.in/ehdcjVF3

  • Give an AI agent your credentials and it inherits your access, but not your judgment, and definitely not your accountability. At Black Hat, our CISO Leslie Nielsen sat down with SC Media's Mike Shema to unpack why agentic AI isn't a new security category. It's an extension of human risk, and the controls we already use to manage people are the right foundation for managing machines. They also dig into the growing gap between security leaders who expect AI-driven attacks and those who feel prepared for them. Catch the full interview here: https://lnkd.in/ev7q96X2

  • This July, Mimecasters around the world came together for our fourth annual Community Resilience Month. 🌍 670+ volunteer hours 📍 18 events supporting 17 organizations 🤝 200 volunteers participated From analyzing Great Barrier Reef imagery to packing meals for food security organizations, mentoring students, and getting hands-on at local farms, this year's turnout reflected something we care about deeply: giving our people time and support to give back to the communities around them. Read more about this year's Community Resilience Month: https://lnkd.in/eYRTRane

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  • 66% of SOC teams say alert volume has outpaced their capacity, and over a third of alerts go uninvestigated overnight. Now the same users are deploying AI agents at machine scale, often without security even knowing they exist. Same gap, two places: stuff you can't see, coming in faster than you can staff for, with nobody clearly owning it when things slip through. Join our CISO Leslie Nielsen, Director of Product Management Schuyler Pagenstecher, and Senior Product Marketing Manager Michael B. as they walk through real telemetry showing where this gap lives: https://lnkd.in/eS33WgWH

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