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Attic M365 FREE is a commercial anti-phishing tool by Attic Security. IronVest InboxGuard is a commercial anti-phishing tool by IronVest. 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 with lean budgets will see immediate ROI from IronVest InboxGuard because it stacks employee training directly into email workflows without requiring a rip-and-replace of existing gateways. The platform covers three distinct NIST CSF 2.0 functions,Awareness and Training, Continuous Monitoring, and Adverse Event Analysis,across 100+ compliance-aligned training modules, which saves you months of building custom curricula from scratch. The real weakness is detection depth; this is a behavioral and training layer, not a replacement for advanced email filtering, so pair it with your current secure email gateway rather than treating it as one.
Protects Microsoft 365 users from phishing attacks using fake login pages
AI-powered email security with phishing detection and employee training
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Common questions about comparing Attic M365 FREE vs IronVest InboxGuard 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..
IronVest InboxGuard: AI-powered email security with phishing detection and employee training. built by IronVest. headquartered in United States. Core capabilities include AI-powered email analysis with red, yellow, and green threat indicators, Real-time email labeling without blocking messages, Security awareness training with 100+ modules covering ISO, NIST, PCI DSS, GDPR, and HIPAA..
Both serve the Anti-Phishing market but differ in approach, feature depth, and target audience.
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