Pentesting Firms

Guide · automated and continuous

Automated pentesting: more often, not instead.

In brief

Automated and autonomous tools do what a scanner can’t: they exploit weaknesses and chain them into an attack path, then repeat it after every fix. They are still weaker than a person on business logic and impact. Use them to test often, and a person-led test where an auditor or a complex app needs one.

§1Finds

What automated testing is good at

  • Repetition. Running the same attack paths weekly or after each release, so a fix that regresses is caught.
  • Breadth on infrastructure. Credential reuse, unpatched hosts, misconfigured Active Directory and exposed services, chained into paths.
  • Retesting. Confirming a fix the day it ships instead of at next year’s engagement.
  • Evidence. Every step logged, which makes findings reproducible.
§2Misses

What it still misses

  • Business logic. Refund loops, approval bypasses, one tenant reaching another: flaws that depend on what the app is for.
  • Judgment about impact. Whether a finding matters to your business, and what to fix first.
  • Novel chains. Creative combinations a person spots and a tool hasn’t been built for, though AI agents are narrowing this.

Ask any vendor who reviews findings before they reach your report, and whether their output is accepted as a penetration test by your auditor.

§3Platforms

Automated and AI-driven platforms

Automated and AI-driven penetration testing platforms
FirmTypePricingRetestSample report
Praetorianpraetorian.comHybridPublishedPublishedNot stated
Astra Securitygetastra.comHybridPublishedPublishedOpen
Horizon3.aihorizon3.aiAutonomous / AIPublishedPublishedNot stated
Penterapentera.ioAutonomous / AINot statedPublishedOpen
XBOWxbow.comAutonomous / AINot statedPublishedNot stated
RunSybilrunsybil.comAutonomous / AINot statedPublishedOpen
Terra Securityterra.securityHybridNot statedPublishedNot stated

From each platform’s own pages, checked November 8, 2026. Decima Systems is ours; its continuous service is planned and its first offering is a pilot assessment.

§4Questions

Questions

Is automated penetration testing the same as vulnerability scanning?

No. A scanner reports known weaknesses one at a time. Automated penetration testing tries to exploit them and chain them toward a goal, such as domain admin or customer data, and records the path as evidence.

Can automated testing replace a manual pentest?

Not entirely, yet. It repeats known attack paths often and cheaply, which a yearly manual test cannot. It is weaker on business-logic flaws and judgment calls about impact, and auditors may still expect a person-led test. Many teams use both.

What does continuous penetration testing mean?

Testing that runs on a schedule or after every change instead of once a year, with fixes retested automatically. Ask a vendor how often it actually runs, and who reviews findings before they reach you.

§5Sources

Sources for this page

  • NIST SP 800-115 — How penetration testing differs from scanning in the standard methodology.
  • MITRE ATT&CK — The techniques automated platforms emulate and report against.
  • Decima Systems: services — Which Decima services are pilots, planned or on the roadmap.

How firms are chosen, what counts as "published" and how to send a correction: methodology.

Cite this page

Pentesting Firms. "Automated, autonomous and continuous penetration testing: what they find and what they miss." Updated November 8, 2026. https://pentestingfirms.com/automated/