Attic M365 FREE vs PhishFirewall Phishing Simulations: Side-by-Side Comparison (2026)

Short answer

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. Mid-market and enterprise security teams drowning in generic phishing training will see measurable lift from PhishFirewall Phishing Simulations because its AI-adaptive frequency adjusts simulation load per user risk profile instead of blasting everyone equally. The omnichannel attack surface,email, SMS, Teams, Slack, voice,actually mirrors how your employees get attacked, and the real-world threat replay feature that de-weaponizes reported phishing before reintroducing it creates feedback loops traditional simulators miss. Skip this if your organization lacks dedicated security awareness staff to interpret the Resilience Index or follow through on the just-in-time microlearning; PhishFirewall is a continuous monitoring tool that demands operational follow-through, not a set-and-forget platform.

Based on our analysis of core features, integrations, company size fit, deployment model, here is our conclusion: