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Firewall Policy Management

Maturity self-assessment

Score each statement from 0 to 5, where 0 means no and 5 means yes, fully implemented. Your total places you on the four-stage maturity model from Chapter 6, and the section scores show which area holds you back.

Governance and Process

We have a documented firewall policy describing security intent and architecture
We have formal change control that all changes follow
We track and identify who made each change, when, and why
We review high-risk rules at least quarterly and the full rulebase at a documented, risk-based cadence that meets any regulatory minimum
We have defined roles and responsibilities

Subtotal: 0 / 25

Tools and Automation

We have centralized management for all firewalls
We can deploy rules to multiple firewalls simultaneously
We can simulate rules before deployment
We can analyze rule usage and identify unused rules automatically
We have automated compliance reporting and continuous monitoring

Subtotal: 0 / 25

Operational Effectiveness

Standard, low-risk changes have a median lead time under three business days, from complete request to validated deployment
In the last four quarters, no more than one material production incident was caused by a firewall change, as defined in our incident policy
Rulebase is well-documented and auditable
We can identify systems accessing critical data
We measure unplanned operational work and keep it low enough to leave planned capacity for engineering and improvement (30% or less is an illustrative target)

Subtotal: 0 / 25

Reading your score

Section titled “Reading your score”

The stage bands are editorial decision rules for this self-assessment, not industry benchmarks, so treat them as a directional heuristic. Maturity is capability-specific, and the section scores can reveal a mixed profile, strong governance with weak automation, say, that the total alone hides. A score near a boundary means you are transitioning, which matters more than the exact number.

Chapter 15 of the book turns the result into quick wins and an 18- to 24-month roadmap, and the checklists and templates on this site support the first steps.