Interpreting Your Score
This checklist is designed as a gap analysis tool, not an audit instrument. Its purpose is to surface specific areas where your enterprise email security program may have unaddressed risks. The goal is not a perfect score — it is honest visibility into where investment and attention are most needed.
If your organization scores below 20 completed checks, prioritize foundation items (Sections 1 and 2) before investing in advanced AI capabilities. Without proper DMARC enforcement and basic inbound filtering, sophisticated behavioral AI is working against a structural weakness.
If you score between 20–34, your biggest gains are likely in Sections 3 (Advanced AI Detection) and 4 (Mobile & Cross-Channel Coverage) — the areas where sophisticated, targeted attacks most commonly succeed against organizations with solid baseline controls.
If you score 35+, focus on Sections 5 and 6 (Response and Governance). A mature detection posture is diminished by slow response or inadequate measurement. See the full program approach in our Enterprise Phishing Prevention Guide.
Top Gaps Most Enterprises Miss
Based on the DefenceNet enterprise security assessment process, the following checklist items represent the most common gaps in organizations that believe they have mature email security postures:
- Internal east-west email scanning: Almost universally absent until explicitly deployed. Most SEGs only scan inbound traffic.
- Behavioral baselining for non-executive users: Many programs apply VIP protection policies only to the C-suite. Finance teams, IT admins, and operations staff are frequent targets who are left unmonitored.
- Zero-day verification: Organizations assume their tools can detect zero-day threats without validating this claim with actual test scenarios against newly registered, untagged domains.
- Mobile channel coverage: Virtually no enterprise email security program extends systematically to the SMS channel accessed by employees on personal devices.