Material Security review

Material Security takes a wider view than most email tools: it treats the mailbox as part of the cloud workspace and protects the accounts and files around it. Essentials, at $4 per user per month billed annually plus a fee tied to Shared Drive size, includes automated detection and response for phishing, BEC, impersonation and fraud, an agent that processes user-reported phish, email bomb detection, threat hunting with custom detections, and training touches such as speedbumps and simulations. It also inventories connected OAuth apps and flags posture problems such as MFA gaps, inactive accounts and mail forwarding. Advanced, at $6, adds sensitive content detection in Shared Drives and email and agentic OAuth remediation. The ATO Resilience add-on, $3 more, puts message-level MFA in front of sensitive and password reset emails so a stolen login does less damage. The drawbacks are the separate Shared Drive fee and that some mailbox types need a quote. For Google Workspace shops in particular, it is one of the few tools that covers email and account risk at a published price.

Who it is for

Lean security teams on Google Workspace or Microsoft 365 that want phishing defense plus account takeover and data protection at a published price.

Price

Essentials from $4 per user per month billed annually, plus a fee based on Shared Drive size.

$4 Per user/month, billed annually Plus fee based on Shared Drive size
Quoted from the vendor pricing page on November 9, 2026.

Key features

• Automated inbound email threat detection and response for phishing, BEC, impersonation and fraud
• Automated agent that handles user-reported phishing
• Flexible remediation with banners, link and attachment speedbumps, spam marking and deletion
• Inventory of connected OAuth apps and risky account settings such as MFA gaps and mail forwarding
• ATO Resilience add-on with message-level MFA for sensitive and password reset emails

Strengths and weaknesses

• Strength: Published prices: Essentials $4, Advanced $6, ATO Resilience add-on $3 per user per month
• Strength: Covers account takeover and file sharing risk as well as inbound phishing
• Strength: Email bomb detection and threat hunting with custom detections on the entry plan
• Weakness: Extra fee based on Shared Drive size on top of the per user price
• Weakness: Sensitive content detection in files and email needs the Advanced plan
• Weakness: Shared, service and student mailbox pricing needs a sales conversation

Key facts

• Plans: Essentials, Advanced, Enterprise, ATO Resilience add-on
• Advanced price: $6 per user per month, billed annually
• Platforms: Google Workspace and Microsoft 365
• Email content retention: Unlimited

Where it ranks

Material Security is No. 3 in our Best Email Security Software verdict.