Egress Defend vs NotifySecurity: Side-by-Side Comparison (2026)

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..

NotifySecurity: An Outlook add-in that enables one-click reporting of suspicious emails to security teams with integrated statistics tracking and SMTP header collection..

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

Egress Defend is developed by Egress. NotifySecurity is open-source with 133 GitHub stars. Vendor maturity, funding stage, and team size can be important factors when evaluating long-term viability and support quality.

Egress Defend and NotifySecurity serve similar Anti-Phishing use cases: both are Anti-Phishing tools. Key differences: Egress Defend is Commercial while NotifySecurity is Free, NotifySecurity is open-source. Review the feature comparison above to determine which fits your requirements.