Six approaches. One honest map.
"Security testing" covers six mechanically different things, and most comparison pages blur them on purpose. This one does not. Here is what a scanner, breach-and-attack simulation, a human pentest, a bug bounty, attack-surface management, and autonomous pentesting each genuinely can and cannot do — and where K0G sits.
Continuous, and proven.
Every approach trades along two lines: how often it runs, and how hard its evidence is. Point-in-time work goes stale; theoretical findings go ignored. The valuable quadrant — continuous and exploit-proven — is where an autonomous pentest is built to live.
Cadence and proof are the two axes buyers most often conflate. A vulnerability scanner and an autonomous pentest both run continuously — but only one hands you a working exploit. A manual pentest and an autonomous pentest both prove exploitation — but only one runs on every deploy. Bug bounty reaches the good quadrant too, without guaranteeing that anything in particular was ever tested.
What each one can mechanically do.
Not opinions — capabilities. Either an approach really exploits the target or it simulates; either it chains findings into a path or it lists them. K0G's column is an autonomous pentest, and the honest cells are marked as honestly as the flattering ones.
Sources for the category distinctions: Gartner's 2026 Market Guide for Adversarial Exposure Validation (which now groups BAS and automated pentesting under one class), the OWASP and PTES testing standards, and independent head-to-head evaluations of AI agents against human testers. The takeaway those studies agree on: autonomous agents beat the median human tester on breadth, cadence and cost, and trail the best human on business logic and novel research — which is exactly how the last two rows are marked.
Each one, in a sentence you can trust.
Agents exploit the live target for real, chain findings into paths, and prove each one — on every deploy, not once a quarter.
- Answers
- "What can actually be compromised, right now?"
- Weakest at
- Novel research; the hardest business logic
Skilled humans exploit within scope and write the compliance-grade report auditors accept. Unmatched on judgment — and point-in-time by nature.
- Answers
- "How far can an expert get this quarter?"
- Weakest at
- Keeping pace with continuous deploys; scale
Independent researchers find genuine, chained bugs and get paid per valid one. Superb creativity; no guarantee anything specific was ever looked at.
- Answers
- "What did whoever showed up happen to find?"
- Weakest at
- Coverage guarantees; a report you can hand an auditor
Replays known attack behaviours from a library against deployed agents to check whether your EDR and SIEM catch them. A different, useful question.
- Answers
- "Do my controls block and detect known threats?"
- Weakest at
- Chaining real flaws; external perimeter; unknown paths
Matches your systems against signatures and reports what pattern-matches. Fast and wide — with no concept of whether any of it is reachable.
- Answers
- "What might be wrong, in theory?"
- Weakest at
- Proof; chaining; false-positive load
Continuously discovers and inventories internet-facing assets, including shadow ones. The input to validation — never a substitute for it.
- Answers
- "What do I have, and what's exposed?"
- Weakest at
- Confirming anything can actually be broken
The part the other pages leave out.
Reach for a human, not K0G, when:
- The target is novel research. A brand-new protocol, a bespoke crypto scheme, a first-of-its-kind architecture — deep adversarial invention is still a human strength, and independent studies still put the best human tester ahead of every agent on creative chaining.
- The flaw is pure business logic. A coupon that re-applies in a specific sequence, an approval workflow that can be run out of order — the classes that require understanding what the business meant. K0G is improving here and finds many of them; it does not yet match a sharp human.
- You need a signed engagement letter. Some frameworks and some customers require a named human tester's attestation. K0G runs alongside that engagement — continuously, between the annual visits — rather than instead of it.
This is the same position as the rest of the site: K0G exists so that when your red team engages, they spend their time on the hard problems instead of rediscovering last month's misconfiguration. Anyone selling you "replaces your pentesters" is selling.
Want the named breakdown instead of the category view? The competitive analysis covers every vendor — XBOW, Horizon3, Pentera, RunSybil, Terra, MindFort, Ethiack, Cymulate, Picus, Cobalt, HackerOne, Bugcrowd and Synack — with sources.