Attic M365 FREE vs Obsidian Browser Ext. for SaaS Spear Phishing: 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..

Obsidian Browser Ext. for SaaS Spear Phishing: Browser ext. that blocks SaaS spear phishing via real-time content analysis. built by Obsidian Security. Core capabilities include Real-time blocking of phishing sites to prevent credential submission, Visual and content analysis for zero-day phishing detection, Applied threat intelligence with pre-built detection rules from observed campaigns..

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. Obsidian Browser Ext. for SaaS Spear Phishing differentiates with Real-time blocking of phishing sites to prevent credential submission, Visual and content analysis for zero-day phishing detection, Applied threat intelligence with pre-built detection rules from observed campaigns.

Attic M365 FREE is developed by Attic Security. Obsidian Browser Ext. for SaaS Spear Phishing is developed by Obsidian Security. Vendor maturity, funding stage, and team size can be important factors when evaluating long-term viability and support quality.

Attic M365 FREE and Obsidian Browser Ext. for SaaS Spear Phishing serve similar Anti-Phishing use cases: both are Anti-Phishing tools, both cover Browser Security. Review the feature comparison above to determine which fits your requirements.