Attic M365 FREE vs NotifySecurity: 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. NotifySecurity 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.
Security teams with understaffed SOCs will see immediate payoff from NotifySecurity's one-click reporting; it cuts the friction between end users spotting phishing and analysts actually receiving SMTP headers for triage. The 133 GitHub stars and free pricing model suggest active adoption among teams that can't justify another commercial seat, and the Outlook integration means you're not fighting email client behavior. Skip this if your organization needs reporting tied to incident response workflows or threat intelligence feeds; NotifySecurity stops after collection.
