Attic M365 FREE vs Keepnet Incident Responder: 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..

Keepnet Incident Responder: AI-powered email incident response platform for phishing threat detection. built by Keepnet Labs. Core capabilities include AI-powered email threat detection and analysis, Phishing Reporter add-in for employee email reporting, Automated email investigation and removal across inboxes..

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. Keepnet Incident Responder differentiates with AI-powered email threat detection and analysis, Phishing Reporter add-in for employee email reporting, Automated email investigation and removal across inboxes.

Attic M365 FREE is developed by Attic Security. Keepnet Incident Responder is developed by Keepnet Labs. 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. Keepnet Incident Responder integrates with Office 365, Google Workspace, Exchange Online, On-Premise Exchange EWS, Palo Alto XSOAR and 3 more. Check integration compatibility with your existing security stack before deciding.

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