What to Look for When Choosing a Penetration Testing Provider_

The buyer's situation 

Choosing a penetration testing provider isn't just a procurement decision, it's a risk decision. The wrong provider hands you a long report full of noise, unclear findings and little practical value. The right one helps you understand exactly where you're exposed, what matters most, and what to do next. The quotes you're comparing vary wildly, the scopes are described differently, and it's genuinely hard to tell from a sales call alone who's going to deliver a test worth paying for. 

What good looks like 

Start with credentials, a provider should be able to demonstrate technical credibility and a clear testing methodology. Look for both organisational accreditation (CREST certification of the firm itself is the clearest independent signal in the Australian market) and individually accredited testers (CREST or OSCP certified, with several years of offensive security experience is a reasonable benchmark), don't assume one implies the other. If the provider's own information security practices are independently certified, ISO 27001 is the standard to look for, that's a useful additional signal that your data and the sensitive findings generated during testing are handled under a recognised standard, though always confirm current certification status directly with the provider rather than taking a logo on a website at face value (certifications such as SOC 2 are sometimes still in progress rather than complete). Look closely at methodology: ask whether findings are manually validated, or whether the service relies on automated scanning dressed up as testing. Reporting quality is critical, a good report should be understandable to both technical and non-technical stakeholders, explaining severity, business impact, evidence and prioritisation, not just a list of CVEs. And post-test support matters: a provider shouldn't disappear the moment the report is delivered. 

Red flags 

Be cautious of providers who can't clearly explain what's automated versus manually validated in their process, that gap is often where false positives and missed exploitation chains come from. Watch for reports that are entirely tool-output with no narrative or business framing, a sign the human review step was thin or skipped. And be wary of vague scoping, if a provider can't tell you specifically what will and won't be tested before you sign, the test itself is likely to be similarly vague. 

Questions to ask 

Are findings manually validated, and by whom? What credentials does the testing team hold? What's the split between automated and manual testing in your methodology? Can we see a sample report before we commit? How do you manage false positives? What happens if a critical vulnerability is found mid-engagement, do we hear about it immediately, or wait for the final report? What support is provided after the report lands, retesting, prioritisation guidance, or is the engagement finished once the PDF arrives? 

Where Block8.ai fits 

Block8.ai is CREST certified at the organisational level and ISO 27001 certified, and its individual penetration testers are additionally CREST or OSCP certified with at least five years of offensive security experience. AI-driven outcomes, vulnerability assessment, exploitation and the resulting report, are each validated by a senior human reviewer through what Block8.ai calls Three-Level Validation, and re-testing is included as standard to confirm fixes actually worked. Reports are written to be read by both technical and non-technical stakeholders, with findings prioritised by exploitability and business impact rather than severity score alone. 

FAQ

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