Attic M365 FREE is a commercial anti-phishing solution by Attic Security. IronVest InboxGuard is a commercial anti-phishing solution by IronVest. Features, integrations, deployment and the company behind each one, side by side.
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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Based on what each listing shows: deployment, company size, price and open source.
IronVest InboxGuard fits if you are a mid-market company or an enterprise.
Common questions when comparing Attic M365 FREE vs IronVest InboxGuard for anti-phishing.
Attic M365 FREE: Protects Microsoft 365 users from phishing attacks using fake login pages. Built by Attic Security.
IronVest InboxGuard: AI-powered email security with phishing detection and employee training. Built by IronVest.
The table above shows where their features, integrations, deployment and company size fit differ.
Attic M365 FREE is made by Attic Security. IronVest InboxGuard is made by IronVest. The vendor behind a product decides its roadmap, support, and longevity, so check each company's profile before you commit.
Often, yes. Attic M365 FREE and IronVest InboxGuard are both Anti-Phishing products, and both cover Office 365. Use the table above to see where features, deployment and company size fit differ.
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Updated 2026-11-02
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