Attic M365 FREE vs PhishingBox Security Inbox: Side-by-Side Comparison (2026)

Attic M365 FREE: Protects Microsoft 365 users from phishing attacks using fake login pages. built by Attic Security. 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..

PhishingBox Security Inbox: Phishing threat identification and mitigation tool for email security teams. built by PhishingBox. Core capabilities include Centralized email threat reporting management, Real-time email threat search and removal, Custom blocklist management with Advanced Threat Graph..

Both serve the Anti-Phishing market but differ in approach, feature depth, and target audience.

Attic M365 FREE differentiates with 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. PhishingBox Security Inbox differentiates with Centralized email threat reporting management, Real-time email threat search and removal, Custom blocklist management with Advanced Threat Graph.

Attic M365 FREE is developed by Attic Security. PhishingBox Security Inbox is developed by PhishingBox. Vendor maturity, funding stage, and team size can be important factors when evaluating long-term viability and support quality.

Attic M365 FREE integrates with Microsoft 365. PhishingBox Security Inbox integrates with KillPhish, Microsoft 365, G Suite, PhishingBox Phishing Simulator. Check integration compatibility with your existing security stack before deciding.

Attic M365 FREE and PhishingBox Security Inbox serve similar Anti-Phishing use cases: both are Anti-Phishing tools. Review the feature comparison above to determine which fits your requirements.