Decision Making Decision method

Red Teaming

Tests assumptions as an authorised, independent challenge and makes plausible failure paths visible; boundaries and stop rules remain explicit.

Red teaming examines a decision, plan, or system from an independent challenge perspective. An authorized brief defines boundaries and stop rules. The investigation challenges assumptions and identifies plausible failure paths.

Core question

How could the plan fail under a credible opposing perspective, and what changes the decision?

Plan the work Method guide

Start comparison

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Participants: 3-8
Time: 60–240 minutes for a tabletop challenge; remediation and retest need follow-up.

How could the plan fail under a credible opposing perspective, and what changes the decision?

Red Teaming method illustration showing its working structure

Scope
Set scope and authority
Name object, allowed evidence, prohibited actions, approval and stop authority.
Perspectives
Build independent perspectives
Select relevant challenge roles and disclose conflicts or shared assumptions.
Challenge
Challenge the plan
Use counterfactuals and failure modes; distinguish evidence, inference and speculation.
Response
Respond and retest
Choose mitigation, acceptance or inquiry; assign owner and retest material changes.

Update the work record when new evidence, changed constraints or the planned review changes an assumption.

A good fit when

For consequential decisions where independent dissent may reveal blind spots. Use tabletop evidence when technical testing is unauthorized or unnecessary.

Ideal for

High-stakes decisions
Security thinking
Strategy review

Not good for

Early creative ideation
Teams without psychological safety

Outputs

Authorized challenge brief
The authorised challenge brief defines the object, allowed evidence, prohibited actions, approval, and stop authority.
Challenge roles and assumptions
The role overview identifies relevant challenge perspectives and makes conflicts or shared assumptions visible.
Prioritized vulnerabilities
The findings list prioritizes counterfactuals and failure paths and distinguishes evidence, inference, and speculation.
Decision and mitigation log
The mitigation log records mitigation, acceptance, or further inquiry together with ownership and retesting of material changes.

Red Teaming working record

Fictional example

Method-specific prompts and a fictional worked example; template prompts remain empty.

Set scope and authority

Keep the challenge inside an explicit safe boundary.

**Scope:** Challenge the launch plan using documents and tabletop scenarios only. No live probing or customer data access is authorized.

Build independent perspectives

Add an independent perspective where possible.

**Challenge:** If confirmation is delayed while inventory stays reserved, can support determine the authoritative state?

Challenge the plan

Describe mechanism and consequence without personal criticism.

**Finding:** The plan does not identify a reconciliation owner or user recovery path. This is a planning gap, not a production defect.

Respond and retest

Record a criterion and follow-up date.

**Response:** Product and operations add a procedure and test it in another tabletop.

The U.S. Army handbook is a practitioner source for structured independent challenge. This guide limits exercises to an approved scope.

U.S. Army Red Team Handbook

First step

Name the owner, object of challenge, allowed evidence, prohibited actions, stop authority and decision use.

Open the method guide

Good to do first

Paper illustration of a decision table with criteria rows, weighted ratings, and a narrowly leading alternative.

Decision Making

Decision Matrix

Supplies the compared options whose chosen one gets challenged here.

Where to go next?

Decision Making

Risk Matrix

Sorts the found weaknesses by likelihood and impact.

Operations

Failure Mode and Effects Analysis

Also assesses each finding systematically by failure mode, effect and risk.

Deep dive

Purpose

For strategic decisions with high reach, agreement and gut feeling are often not enough. Red teaming brings deliberate opposition into the situation and tests where a plan breaks under real counterarguments.

How it works

An opposing camp targets weaknesses, misunderstandings, and exploitable assumptions. Arguments are not politely supplemented but put under pressure until resilience, robustness, and responsiveness become visible. This produces more solid decisions and clearer lines of defense.

In detail

Red Teaming strengthens decisions by deliberately attacking an initiative from an opposing perspective. This requires a clear mandate, psychological safety, and willingness to take uncomfortable findings seriously. Criticism turns into decision protection when points of attack lead to better assumptions, safeguards, or stop decisions.

Facilitation

Formulate the thesis being tested, its success assumptions, and the permitted points of attack clearly enough that the counter-design doesn't grope in the fog. The real payoff comes when defense and criticism meet concrete weaknesses rather than questions of style. Close with a revised plan, open remaining attacks, and deliberate safeguards.

The method guide walks execution through 4 phases, timing, 4 pitfalls, and clear stop criteria.

Open method guide

Your perspective

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Sources and topics

Topics

Risk Decision Sensemaking

Sources

U.S. Army Red Team Handbookhome.army.milThe U.S. Army handbook is a practitioner source for structured independent challenge. This guide limits exercises to an approved scope.

Artifact templates

Red Teaming: WorksheetPlan a session or initiative to match the actual scope of work.

markdown

red-teaming-working-template.md

Plan a session or initiative to match the actual scope of work.

Red Teaming: Worksheet

Question

To be confirmed

Desired outcome

To be confirmed

Scope

Prepare the full method Time: 60–240 minutes for a tabletop challenge; remediation and retest need follow-up.

Complete this worksheet on paper or in your own document during the work.

Preparation for this scope

Method setup

Materials: Current decision material, evidence register, scoped authority, independent participants and secure findings handling.
Roles: Decision owner · independent challenge lead · relevant experts · mitigation owners.
Advance information: Choose materials, data access and participants to fit the research or decision question.
Overall time needed: 60–240 minutes for a tabletop challenge; remediation and retest need follow-up.
Setup: Open the method-specific structure. Fictional examples are for orientation only; keep the blank worksheet separate from actual findings.

Prepare for the work steps

Scope: Set scope and authority

Name the owner, object of challenge, allowed evidence, prohibited actions, stop authority and decision use.
Current decision material, evidence register, scoped authority, independent participants and secure findings handling.