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Attic M365 FREE is a commercial anti-phishing tool by Attic Security. FirmGuardian Email Protection is a commercial anti-phishing tool by FirmGuardian. Compare features, ratings, integrations, and community reviews side by side to find the best anti-phishing fit for your security stack.
CST VerdictBased on our analysis of NIST CSF 2.0 coverage, core features, integrations, company size fit, here is our conclusion:
Startup and SMB security teams protecting Microsoft 365 will benefit most from Attic M365 FREE because it stops AiTM phishing attacks that bypass MFA, the attack class traditional email filters miss entirely. The tool deploys in five minutes with no payment required, making it immediately useful for resource-constrained teams, and its real-time detection of fake login pages covers both NIST PR.AA and DE.CM functions simultaneously. Skip this if your organization needs protection beyond Microsoft 365 or runs a heterogeneous SaaS stack; Attic is deliberately focused on one platform and one threat vector.
Security teams at startups and SMBs will see the fastest ROI from FirmGuardian Email Protection because the human analyst layer catches BEC and impersonation attacks that pure AI misses, without the staffing overhead of a full SOC. The tool covers both detection and user behavior monitoring across Microsoft 365 and Google Workspace, hitting DE.CM and PR.AT in NIST CSF 2.0. Skip this if your organization needs deep integration with non-cloud email systems or requires automated response orchestration beyond quarantine.
Protects Microsoft 365 users from phishing attacks using fake login pages
Managed anti-phishing service combining AI detection with human analyst review.
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Common questions about comparing Attic M365 FREE vs FirmGuardian Email Protection for your anti-phishing needs.
Attic M365 FREE: Protects Microsoft 365 users from phishing attacks using fake login pages. built by Attic Security. headquartered in Netherlands. Core capabilities include Real-time detection of fake Microsoft 365 login pages, Red alarm screen warning when accessing fraudulent pages, Authenticity seal display on official Microsoft 365 login pages..
FirmGuardian Email Protection: Managed anti-phishing service combining AI detection with human analyst review. built by FirmGuardian. headquartered in United States. Core capabilities include AI-powered phishing detection and automated quarantine, Human analyst review for low-confidence email classification, Business Email Compromise (BEC) and impersonation protection..
Both serve the Anti-Phishing market but differ in approach, feature depth, and target audience.
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