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Attic M365 FREE is a commercial anti-phishing tool by Attic Security. Keepnet Incident Responder is a commercial anti-phishing tool by Keepnet Labs. 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 under siege from phishing will find Keepnet Incident Responder's automation genuinely useful; the platform removes detected threats across inboxes and archives in minutes rather than hours, which matters when your inbox is the attack surface. The 20+ integrated analysis engines and direct Office 365/Google Workspace connectors mean you're not manually exfiltrating emails to third-party sandboxes. Skip this if you need post-incident forensics and recovery workflows; Keepnet prioritizes detection and containment over the investigation depth that larger breaches demand.
Protects Microsoft 365 users from phishing attacks using fake login pages
AI-powered email incident response platform for phishing threat detection
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Common questions about comparing Attic M365 FREE vs Keepnet Incident Responder 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..
Keepnet Incident Responder: AI-powered email incident response platform for phishing threat detection. built by Keepnet Labs. headquartered in United Kingdom. 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.
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