Technology 03 · Mimecast · Email and collaboration

Email & collaboration: protect email and collaboration, the leading attack vector

Email remains the attackers' main entry point: phishing, CEO fraud, fake suppliers, compromised accounts. Mimecast protects mailboxes and collaboration spaces, and turns users into the first line of defence.

AI-powered attacks, AI-powered defence

With AI, a fake email can no longer be spotted by its mistakes

Generative AI can write a convincing message in seconds, in the language and tone of a supplier or an executive. Signature‑based filters fall short: the intent of the message and the behaviour of the sender have to be understood.

$6.3bnIn reported losses from business email compromise (BEC) in 2024 FBI IC3 · 2024 Annual Report
2ndCostliest cybercrime in reported losses: business email compromise FBI IC3 · 2024 Annual Report

What AI changes on the attacker side

  • Personalised phishing at scale, flawless and polished
  • CEO fraud and urgent payment requests, fake bank detail changes
  • Compromised legitimate accounts used for internal attacks, malicious links in Teams, SharePoint and OneDrive

How AI strengthens defence

  • More than 40 layers of analysis, including behavioural AI and natural language processing to detect urgency, payment requests and impersonation
  • Relationship analysis: the platform learns who exchanges with whom and shows warning banners only on real threats
  • Sandboxing and AI code analysis on attachments, URLs and QR codes
  • Automatic triage of emails reported by users and automatic removal of malicious messages
FEATURES

From the inbox to collaboration spaces

Email security

  • Protection of inbound and outbound email
  • Deployed inline (MX) or through the Microsoft 365 API
  • Complementing Microsoft Defender

Fraud and impersonation

  • Advanced detection of business email compromise (BEC)
  • Protection against account takeover
  • Analysis of internal email and mailbox clean‑up

DMARC

  • Visibility on SPF, DKIM and DMARC
  • Domain protection against spoofing
  • Clients and partners protected in return

Collaboration

  • Detection and quarantine in Teams, SharePoint and OneDrive
  • Analysis of links, files and QR codes

Human factor

  • Awareness micro-modules of 2 to 3 minutes
  • Phishing simulations
  • Risk score per user and targeted reminders in Teams or by email

Continuity

  • Cloud backup mail service
  • Archiving and search
  • Secure sending of messages and large files
HOW IT WORKS

Every message analysed before it reaches the user

  1. InspectSender, domain, content, attachments, links and QR codes thoroughly screened
  2. UnderstandAI assesses the intent of the message and the relationship with the sender
  3. ActBlock, quarantine or contextual warning banner
  4. RemediateAutomatic removal of malicious messages already delivered, user reports handled by AI
HOW WE SUPPORT YOU

Email protected and operated day to day

Deployment

  • Initial configuration and integration with the mail system
  • Tuning of essential protections
  • Testing and acceptance

Managed services

  • Email security monitoring
  • Platform administration
  • Handling of false positives, false negatives and incidents

DMARC project

  • Kick‑off, compliance, hardening
  • Monitoring and governance
  • Alerts on DNS changes and regular reports

Measure how many threats get through the mail system today.