How do you write a proof of concept plan for exposure management tools?

Why plan it at all?

Without a plan, each vendor runs the demo it does best and the comparison is between demos. With a plan, you compare tools on the shape of your own problem.

What goes into the plan?

1. Scope. The same slice of your estate for every vendor, ideally your first CTEM scope.
2. Inputs. What each vendor gets to start. Some start from a company name (CyCognito describes this); others need seeds such as domains and IP blocks (Censys describes this). Record what each needed.
3. Known answers. A list of assets and exposures you already know about in scope, kept private. It tells you what each tool missed and what it found that you did not know.
4. Questions. The same written questions for every vendor, taken from your shape: discovery, proof, data, cycle or edge.
5. Criteria. What good looks like, agreed before you start.

What should you measure?

• Assets found that were on your known list, and assets found that were not.
• How many findings were confirmed exploitable, and how many of those you agree with.
• Whether each finding arrived with an owner and a route to a fix.
• Whether a fix was retested, and how.
• Where relevant, whether a compensating control could be applied through your WAF or edge.

What about trials?

Some vendors make this easier: Microsoft Defender EASM has a 30-day free trial and Rapid7 lists a public trial for Surface Command. For others, ask for a time-boxed evaluation with the same scope.

How do you write up the result?

One page per vendor with the measures above, then one page comparing them against your criteria. Keep the known-answers list and reuse it for the next evaluation.

What next?

Use Facts in columns to prepare questions on the facts vendors publish, and the exposure finder to decide which tool type the proof of concept should focus on.