Network pentesting is a broad category, and infrastructure pentesting is broader still. Buyers use both terms to mean different things, and vendors add their own labels on top. Infrastructure pentesting breaks down into three categories:
- Web app infrastructure pentest: tests the infrastructure a web app is hosted on, limited to a single server. It works as an extension of web app pentesting.
- External network infrastructure pentest: tests the full external attack surface, every system a company has facing the internet, from VPN gateways to mail servers, including the part of each app anyone can see without logging in.
- Internal network infrastructure pentest: tests the internal network, including all servers and the Active Directory that holds every employee’s credentials, if there is one. It covers systems that aren’t reachable from the internet, like an office network, a private cloud or a Kubernetes cluster.
This guide compares tools for the last two. AI pentesting tools have changed how both are done, and the tools below differ in how much agency the AI has.
Start from what you want tested. Do you want to recreate an attacker coming from the outside with nothing but your domain, or one who’s already inside via a stolen password?
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Which network and infrastructure pentesting tools should you shortlist?
Our pick: Aikido Security is the best choice for external network pentesting. It starts from any number of your domains, spawns a dedicated agent for testing every host, and retests fixes for new ways in.
Best for full external attack surface pentesting
- Aikido Security: starts from your root domains and finds every internet-facing system, including forgotten ones, then tests each.
- Horizon3 NodeZero: runs external tests from Horizon3’s cloud, with no setup on your side.
Best for black-box external network pentesting
- Aikido Security: needs only a verified domain, with no credentials or code access.
- Hadrian: tests your perimeter from the outside, with no software to install.
Best for web app and external network pentesting from one vendor
- Aikido Security: runs whitebox (with your source code as context) or blackbox web app pentests, and external network pentests.
- Pentera: covers networks and web apps through separate modules.
Best for internal network and Active Directory pentesting
- Horizon3 NodeZero: tests how stolen credentials let an attacker move between systems, starting from a foothold inside the network.
- Pentera: runs the same kind of internal test in production environments.
- Ridge Security (RidgeBot): runs entirely on an appliance inside your environment, which suits strict data-handling requirements.
Best for retesting your external network pentest
- Aikido Security: retests fixes and checks whether new vulnerabilities appeared as a result.
- Escape: says it confirms a fix before a finding is closed.
Common problems with network and infrastructure pentesting tools
Annual pentest reports are outdated by the time you get them
A pentest describes your external network on the day it ran. Teams ship much faster than that. In Aikido Security’s 2026 State of AI in Pentesting report, 76% of organizations deploy significant production changes weekly or faster, while just 21% validate security on every release. A host that goes live a week after an annual pentest goes untested until the next one. Of the 400 security and engineering leaders surveyed, 79% worry about vulnerabilities slipping in between scheduled tests, and 48% say findings are already outdated by the time they arrive. Our guide to setting pentest frequency and budget by risk covers how teams close that gap.
Some AI pentesting tools run scripted attack paths
“AI pentesting” covers very different engines. Some tools run a fixed set of attack paths and trigger each one when its conditions match. Others add a model that chooses between those same fixed paths. Both only test based on rules written in advance, so a weakness on any other attack path goes untested. For the wider category, see our guide to automated pentesting tools.
Internal network pentesting is slow to set up
Assumed-breach testing needs a host inside your network that can run the attacks. That means change requests and firewall rules before the first run. For teams that only need the perimeter tested, that overhead buys nothing.
Retests only check the original finding
A finding is typically closed when the exact attack path is rerun and fails. Fixes can open new paths, though, like a firewall change that closes one port and exposes another, and a retest that only replays the original exploit won’t notice.
How we evaluated these tools
We worked from each vendor’s published documentation and launch material as of November 2026. We weighted attack-path coverage, AI involvement, deployment model and remediation verification. Vendor benchmarks are treated as the vendor’s own claims.
Network pentesting tools compared
Top 6 AI network and infrastructure pentesting tools reviewed
1. Aikido Security
What it does: Aikido Security’s external network pentesting starts with your domains and tests everything it can find exposed to the internet, the way an outside attacker would. That includes websites, APIs, VPN gateways and self-hosted servers. AI agents work through each system, and the report shows every step. In one typical chain, an exposed .git folder makes a repository’s history readable, and that history contains SSH credentials. The same credentials work on a second server. This is where the agents find Azure credentials that give admin access to the cloud tenant.
Why it stands out: Here is how Aikido Security does on the criteria we weighted:
- Attack-path coverage: within the external perimeter, every host gets its own agents, and agents carry what they find from one host to the next, so a leak on one server can lead to the next.
- AI involvement: many tools follow attack paths someone scripted in advance. Aikido Security’s agents run on frontier models and reason each next move from what they find, which lets them follow routes outside any script.
- Deployment: setup is adding your domains and an ownership check, with no scoping call. Pricing follows the number of public assets found, and you see the exact quote before anything runs.
- Remediation verification: findings only reach the report once another set of agents reproduces them. Some retests only replay the original attack, but Aikido Security’s retest also checks whether the fix opened a new way in somewhere else. All retests are included.
Aikido Security also runs whitebox web app pentests with your source code as context, which include a web app infra pentest of the server hosting the app, plus mobile and AI capabilities pentests. They all run in the same Aikido product as the external network pentest, so findings and retests sit in one place. Aikido Security is CREST accredited for penetration testing, so a human-led engagement is available when an auditor requires one.
What to know: Aikido Security currently offers the web app infra pentest and the external network infrastructure pentest. The internal network infrastructre pentest and Active Directory testing are coming soon. Testing what happens after login, such as user roles and business logic, is covered by Aikido Security’s web app pentest.
2. Pentera
What it does: Pentera tests internal networks and Active Directory from a server inside your environment. It starts from a low-privilege position and works toward domain admin using credentials it finds along the way. The same engine also tests external attack surfaces and cloud identity in hybrid setups.
Why it stands out: It includes ransomware emulation.
What to know: Pentera runs from a server inside your environment, which usually means change requests and firewall rules before the first run. If you only need the perimeter tested, that setup is overhead. Our list of Pentera alternatives covers other options.
3. Horizon3 NodeZero
What it does: NodeZero runs pentests against internal networks, external attack surfaces, cloud, Kubernetes and Active Directory. Internal tests run from a Docker host that you set up inside your network, and external tests run from Horizon3’s cloud. To check a fix, you rerun a test and compare the results.
Why it stands out: It covers internal and external testing on one platform.
What to know: It has no source code access. Horizon3 announced web app testing on July 29, 2026, and its product page describes it as in early access, so it is the newest part of a network-focused platform. See our list of Horizon3 alternatives for other options.
4. Ridge Security (RidgeBot)
What it does: RidgeBot tests a network from inside, working from asset discovery through exploitation and movement between hosts. It deploys as an appliance or virtual machine inside your environment.
Why it stands out: It runs on hardware you control, so test data stays in your network. Our comparison of on-prem AI pentesting tools covers the wider field.
What to know: Ridge markets RidgeBot as AI-driven, so ask which decisions a model makes and which come from scripted exploit plugins. It has fewer independent reviews than Pentera or NodeZero. It needs an appliance or virtual machine deployed in your environment before the first test.
5. Hadrian
What it does: Hadrian finds the systems you expose to the internet and tests them for weaknesses an attacker could use.
Why it stands out: It needs no software installed, and you approve the scope before any test starts.
What to know: Coverage is external only, with no internal lateral movement or Active Directory testing. There’s no source code access or code-level fix. Teams with internal risk need a second tool alongside it.
6. Escape
What it does: Escape added external network pentesting to its API security platform. You connect cloud accounts, DNS or IP ranges so it can find assets. It checks TCP ports on every host it finds and, on exposed databases and SSH, tries default logins.
Why it stands out: It runs without agents on your systems, and its findings sit alongside its API and GraphQL testing.
What to know: It doesn’t test internal lateral movement and has no ransomware emulation. Its agentic engine targets applications, so ask how much of the network testing an agent drives. Processing runs in Escape’s cloud. The Aikido and Escape comparison puts the two side by side.
How to choose a network pentesting tool
Decide where the attacker starts. If the scenario that worries you is a phished laptop, you need assumed-breach internal testing. If it’s a forgotten VPN gateway with a reused password, you need external testing. Most organizations end up running both kinds of tests.
Ask what the AI decides. Find out whether the model reasons attack techniques on its own, or whether a researcher wrote them down beforehand.
Check what you have to install. Internal testing usually means a host inside your network that can run the attacks, so ask who can reach it and where its results are processed. External testing should need little more than your domain.
Make the tool prove the fix. Ask whether you can rerun the exact attack path on demand. Also ask whether a retest only checks the original issue. It should also verify if the patch/fix is accurate, incomplete, if it can be bypassed or if it creates new entry points.
Pentest your whole perimeter from one domain
Give Aikido Security’s agents your root domains and they map and test everything the internet can reach under it. If one application carries most of your business, start with Aikido Security’s whitebox web app pentest and fix what it finds. Then start an external network pentest and see what’s left open around it.
FAQ
What is the best AI network pentesting tool?
It depends on where the attacker starts. For an attacker coming from the internet, Aikido Security is the best choice: it needs only your domains and tests every host it finds. For an attacker already inside the network, with a stolen password or a compromised laptop, you need an assumed-breach internal test, which is a different job from external testing. Enterprise teams comparing options across applications as well can start with our guide to enterprise AI pentesting tools.
What’s the difference between network pentesting and infrastructure pentesting?
Infrastructure pentesting is the broader term. It covers web app infra pentests (the server hosting a web app), external network infra pentests (everything exposed to the internet) and internal network infra pentests (the internal network, including Active Directory). Network pentesting usually means the last two. Buyers and vendors use the terms loosely, so confirm which test someone means before you scope it.
What’s the difference between a network pentest and a vulnerability scan?
A vulnerability scan matches what it finds against a list of known flaws and stops there. A network pentest tries those flaws, uses whatever access works to reach the next system, and reports what an attacker could reach and how.
How do I check that an automated network pentest is safe to run in production?
Ask what reviews each action before it runs, and what happens to any data the test can reach. With Aikido Security, a supervisor agent reviews each action and blocks anything that could disrupt a system. Agents stop once exploitation is proven and ask a human before going deeper, and a panic button halts all of them instantly. They show what they could access without downloading or storing it, so the report proves reach without creating a copy of your data. See how scope enforcement works for the details.
Do I need separate tools for internal and external network pentesting?
Often, yes, because the two tests start from different places. An external test starts from your domain, and an internal test starts from a foothold inside the network. Aikido Security covers the external side from just a domain and an ownership check, with internal network and Active Directory testing coming soon, so it belongs on the shortlist whichever way you split the work. Pentera and NodeZero cover both today, but their internal tests start from a host you place inside your network, so expect change requests and firewall rules before the first run. Hadrian and Escape test from the outside only, so teams with internal risk need a second tool alongside them.
Does AI network pentesting replace human pentesters?
Human testers add the most value where judgment matters: a business-critical application, or an attack scenario only someone who knows the business would think of. Re-checking hundreds of hosts for changes since the last engagement uses that skill poorly. Agents can sweep every host on each run, which leaves the human engagement for the problems that need a person. Our comparison of manual and automated pentesting covers where each fits.
Will an automated network pentest satisfy my auditor?
It depends on the framework. PCI DSS requires both internal and external penetration testing and expects a qualified tester, which Aikido Security covers through its human-led, CREST accredited penetration test. SOC 2 and ISO 27001 auditors commonly ask for a pentest report, and every Aikido Security external network pentest produces an audit-ready report with validated findings and proof of exploit. Our guide to AI pentesting and compliance maps the frameworks in more detail.
Do I need a web app pentest or an external network pentest?
They test different things. An external network pentest attacks everything an outsider can reach under your domain, including the pages of your apps that need no login. A web app pentest goes inside one application, where user roles and business logic live, and Aikido Security’s includes a web app infra pentest of the server hosting it. If a single app carries most of your business, test that first, fix the findings, then test the perimeter around it. The launch announcement covers how the two fit together.
