Attic M365 FREE vs Phishing Catcher: Side-by-Side Comparison (2026)
Features, pricing, ratings, and pros & cons — compared head-to-head.
Attic M365 FREE is a commercial anti-phishing tool by Attic Security. Phishing Catcher is a free anti-phishing tool. 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.
Brand protection teams with lean budgets and strong technical depth should run Phishing Catcher for early detection of lookalike domains before they're weaponized; monitoring Certificate Transparency logs catches suspicious registrations within minutes of issuance, which outpaces most commercial phishing feeds. The 1,757 GitHub stars and active community maintenance mean you're inheriting a tool that actually gets used. Skip this if your team lacks the infrastructure to ingest API streams and act on alerts programmatically, or if you need pre-built integrations with your SIEM; Phishing Catcher is a detection feeder, not a response platform.
