Inherited Security Stack:
A Defensible Audit Method
Our guide delivers a repeatable four-step audit to map every tool, expose coverage gaps against MITRE ATT&CK, and score each one on five axes, so you can:
Why Use the Security Stack Worksheet?
Gartner finds 65% of organizations pursue vendor consolidation to improve risk posture, yet the average security team runs 76 tools without a scoring method to justify which ones stay.
Surface shadow IT in hours.
Pull the Google Workspace OAuth consent log to reveal vendors nobody registered and shrink the unknown attack surface before it becomes your exposure.
Score every tool on five axes.
Capability uniqueness, utilization, integration readiness, compliance lock, and total cost of ownership turn gut feel into a defensible verdict.
Map spend to NIST CSF risk families.
Allocate every budget dollar into the six risk functions on one page, so the board sees zero-investment families at a glance.
Retire redundant tools without a coverage gap.
Run old and new controls in parallel, validate coverage before decommissioning, and time cuts to renewal dates to negotiate from evidence.
What's inside?
A four-step mechanical audit that turns scattered ownership data into a one-page stack view with each tool's owner, annual cost, renewal date, and capability tag mapped against NIST CSF risk families.
A five-axis scoring worksheet that rates capability uniqueness, utilization, integration readiness, compliance lock, and total cost of ownership to produce a defensible keep, cut, or replace verdict per tool.
A MITRE ATT&CK coverage map that makes overlap and blind spots visible on one page, identifying which capability areas have three tools covering the same terrain and which have no owner.
A board-ready compliance guardrail checklist flagging controls locked in by SOC 2, ISO 27001, HIPAA, PCI DSS, and NIS2, so no required control disappears before an auditor expects to see it.
Get the Security Stack Worksheet
to score every tool on five axes, expose coverage blind spots against MITRE ATT&CK, and reach a defensible verdict before the next renewal lands.
Download the Security Stack Worksheet
Why UnderDefense?
At UnderDefense, we run the stack audit during onboarding, mapping every tool to MITRE ATT&CK and NIST CSF before any coverage gap is opened.
- MITRE ATT&CK coverage mapping – Documented technique coverage turns overlap into a verdict.
- Vendor-agnostic integration – Works with your existing SIEM, EDR, and security tools.
- 30-day onboarding – Detections run alongside existing controls, nothing cut early.
- Compliance-locked control flagging – SOC 2, HIPAA, and PCI DSS controls flagged before decommissioning.
- Published per-endpoint pricing – Documented rates, no surprise renegotiation at renewal.
