A penetration test is an authorized, simulated attack on your systems by specialists who think like criminals. The report that follows can run to dozens of pages. You don't need to understand every technical detail to get value from it — you need to know what matters, what it means for the business and who's fixing what.
Penetration test or vulnerability scan?
A vulnerability scan is an automated check for known weaknesses. A penetration test goes further: skilled testers try to exploit weaknesses and chain them together to show how far an attacker could really get. Both are useful, but they answer different questions.
Start with the executive summary
A good report opens with a short summary written for leadership. It should tell you, in plain language:
- What was tested, and what wasn't.
- The most serious findings and what an attacker could do with them.
- An overall view of your security, with the top priorities to fix.
If the summary is full of jargon, ask the tester to walk you through it. That's part of the job.
Understanding severity ratings
Findings are usually rated critical, high, medium or low. Translate them into business terms:
- Critical: an attacker could likely take control of important systems or data. Fix immediately.
- High: a serious weakness that could lead to a breach. Fix within days or weeks.
- Medium and low: weaknesses that matter mainly in combination with others. Schedule them.
Look for the attack story
The most valuable part of many reports is the narrative showing how testers moved from a small foothold to something important — for example, from a phishing email to an administrator account. It shows how individual weaknesses combine, and which single fix would break the chain.
Turn findings into a plan
- Assign an owner and a deadline to every critical and high finding.
- Track progress monthly until they're closed.
- Ask for a retest to confirm fixes actually work.
Questions to ask your tester
- What would a real attacker most likely do first?
- Which one or two fixes would reduce our risk the most?
- Is anything here a sign we may already have been compromised?
Key takeaways
- Read the executive summary and the attack story first.
- Every serious finding needs an owner and a date.
- A test is only valuable if it leads to fixes — and a retest.