Attic M365 FREE vs Egress Defend: 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..

Egress Defend: AI-powered anti-phishing solution for Microsoft 365 with behavioral detection. built by Egress. Core capabilities include Behavioral AI-based phishing detection, Natural language processing for email intent analysis, Machine learning user behavior baselines..

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. Egress Defend differentiates with Behavioral AI-based phishing detection, Natural language processing for email intent analysis, Machine learning user behavior baselines.

Attic M365 FREE is developed by Attic Security. Egress Defend is developed by Egress. 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. Egress Defend integrates with Microsoft 365, Microsoft Outlook, Microsoft Safelinks, SIEM, SOAR and 1 more. Check integration compatibility with your existing security stack before deciding.

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