Software advice
Best AI Attack Surface Management Software in 2026
AI attack surface management software continuously finds the domains, IP addresses, cloud hosts, APIs and forgotten services that a company exposes to the internet, then checks which of them can be attacked. AI shows up as natural-language search, automated validation or agent-driven testing. It is not an internal vulnerability scanner, an endpoint agent or a once-a-year penetration test, although several vendors now sell all three beside it.
Quick answer
Attaxion ranks first because it prints every plan price and what counts toward an asset. runZero suits teams that want a free tier and internal coverage. Detectify suits buyers who want European pricing and web application testing in one contract.
A security lead who shops for attack surface management usually faces two problems at once: nobody knows the complete list of public assets, and the findings that come back are often unconfirmed. Vendors now answer with AI agents that validate exposures or chat with the data, but their pages rarely say what an asset is, how many you may track, or where scan results are stored. Prices are hidden behind demos for most of the field. This ranking therefore weighs what a buyer can check before a call: printed prices, billing units, stated certifications, hosting details, the shape of the AI features and the home jurisdiction of the vendor.
The 10 best AI attack surface management software in 2026, ranked
There is no score. Vendors can pay for more visibility on this website, for example a higher place in a ranking or more room on a page. Commercial relationships can also affect which products we feature and how prominently. How we rank.
| # | Tool | Best for | Free plan | Entry price |
|---|---|---|---|---|
| 1 | Attaxion | Small and mid-size teams that want printed prices and a self-serve external scan | Trial | $129 per month for up to 40 assets |
| 2 | runZero | Teams with mixed IT, OT and IoT estates that need an inventory first | Yes | Free Community Edition; Platform starts at $5,000 |
| 3 | Detectify | Product security teams that want asset discovery and web application scanning together | Yes | EUR 0 Starter, EUR 2,500 per year Standard |
| 4 | Intruder | Small security or IT teams that want scanning plus a virtual analyst | Yes | Free forever plan; paid tiers use a base fee plus a per-target fee |
| 5 | ProjectDiscovery | Offensive teams that already use Nuclei and want an AI agent on top | Yes | $200 per seat per month, free tier available |
| 6 | Hadrian | Security teams that want confirmed exploit paths instead of raw scanner output | No | From EUR 1,250 per Nova pentest; Atlas quoted by asset count |
| 7 | Censys | Analysts who want to search an internet-wide dataset through an API | Yes | Quote only; free account available |
| 8 | CybelAngel | Security teams that want exposure, leaked credentials and brand abuse in one service | No | Quoted |
| 9 | ONYPHE | Detection engineers who want API-first access to scan data and history | No | Quoted |
| 10 | Searchlight Exposure | Teams that want proven external exposures routed into Splunk, Jira or a SIEM | No | Quoted |
- 1
Attaxion takes first place because a buyer can read three plan prices, the asset limits and the billing unit before any call. The 30-day trial rolls into a limited free edition. The page names no AI features, so the rank rests on pricing clarity and fit, not on agent depth. Hosting is Google Cloud with no region stated and no certification appears on the pages read.
Strong on
- Plan prices from $129 to $949 per month and annual discounts are printed on the pricing page
- Only domains, subdomains and IP addresses count toward the asset limit
- Alerts through email, Slack and Jira, plus an API on every plan
Weak on
- No AI features and no security certification appear on the pages we read
- Enterprise pricing, isolated environments and traffic monitoring are available only on request
Skip it if: Large estates with thousands of assets, or buyers who need a stated certification or hosting region. Starter, Plus and Business are printed; annual billing gives two months free and only domains, subdomains and IPs count.
- 2
runZero ranks second because a free tier with real limits and a starting price for the paid platform are both printed. It covers internal and external assets, which most rivals on this list do not. The 5.1 release adds natural-language search and AI-assisted reports and integrations. The pages read state no certification and no hosting region for customer data, which holds it below Attaxion.
Strong on
- Community Edition is free for up to 100 assets with a 21-day full trial of the platform
- Self-hosted console and explorers are optional on the Platform license
- AI workflows turn plain-language requests into queries, dashboards and custom integrations
Weak on
- Community keeps data for 30 days and allows only 8,192 IPs per scan range
- No certification or customer data region appears on the pages we read
Skip it if: Buyers who want an exploit-validation agent or a managed service that triages findings for them. Community covers 100 or fewer assets; Platform pricing is contract-based on asset count above that.
- 3
Detectify ranks third because its tier prices are printed in euros and it combines surface monitoring with authenticated web and API scanning. Its ISO 27001 badge and Swedish roots help European buyers. The AI items are listed as Alfred AI, agentic tooling and an MCP server without detail on the pricing page. Per-domain and per-target add-on charges make the final bill harder to predict than the entry fee suggests.
Strong on
- Plan prices from EUR 0 to EUR 15,000 per year are printed
- Alfred AI turns new CVE research into scanner tests, per the product page
- ISO 27001 badge shown, and PCI ASV scanning costs EUR 500 a year
Weak on
- Add-on charges per domain and per target are not itemized on the pricing page
- Privacy policy names no hosting region and mentions transfers to the USA
Skip it if: Operations teams that need inventory of internal devices, operational technology or non-web services. Annual platform fee by plan, plus per-domain and per-target charges for monitoring and scanning.
- 4
Intruder ranks fourth. Its plan matrix is detailed, with ports monitored, scan frequency, cloud accounts and AI investigation credits per tier, and a SOC 2 Type 2 audit is stated. The missing dollar figures for Cloud and Pro stop it from placing higher. GregAI and AI pentesting from $3,500 per test are the AI offers, and credits cap the investigation use.
Strong on
- Free plan, a 14-day trial with Cloud features and a long integration list
- SOC 2 Type 2 audit stated, with encryption and access practices described
- GregAI analyst and AI investigation credits scale from 1 on Free to 50 on Enterprise
Weak on
- Shadow IT discovery and all-port monitoring appear only on Enterprise
- The security page does not state hosting regions or how AI features use customer data
Skip it if: Buyers who need a printed price for the paid tiers or a discovery tool for thousands of assets. Cloud and Pro dollar amounts did not render on the pricing page we read, so only the structure is known.
- 5
ProjectDiscovery ranks fifth. It prints seat prices, weekly allowance rules and the free tier's deployment terms, and it states SOC 2 Type II. Neo is an agent platform for pentesting and triage that includes attack surface discovery as one capability, so it suits a security engineer more than an IT generalist. Usage allowances reset weekly and running tasks pause when they run out.
Strong on
- Seat price, allowance tiers and top-up behavior are printed on the pricing page
- Free tier states US hosting and zero data retention; Enterprise adds dedicated VPC or on-prem
- Open source tools such as Nuclei and Subfinder sit alongside the commercial agent
Weak on
- Usage is metered weekly and unused allowance does not roll over
- Attack surface discovery is one capability inside a broader pentesting product
Skip it if: Non-technical teams looking for a monitored inventory with managed triage. Neo is priced per seat with a weekly usage allowance; Enterprise is custom.
- 6
Hadrian ranks sixth. Its agents sign in per role and chain steps within a set scope, a clear explanation of the AI step, and it displays SOC 2 Type 2 with an Amsterdam legal entity. The discovery product is quote-only and the privacy statement names no hosting location, so a buyer learns less about cost and data than at the top five.
Strong on
- Nova agents test authenticated web apps within a scope the customer sets
- A broad integration list covers Jira, Splunk, Sentinel, Cortex XSOAR and Tines
- Dutch legal entity with SOC 2 Type 2 badge and mappings to NIS2 and DORA
Weak on
- Atlas pricing by asset count is not published
- Privacy statement gives no hosting location and no named subprocessors
Skip it if: Buyers who want to start with a free tier or a fixed monthly price. Nova pentests print a starting price; the Atlas discovery product needs a demo.
- 7
Censys ranks seventh. The plan tables are detailed, with users, enrichment calls per day and data history months by tier, and every tier has an AI assistant for natural-language search. No price or certification is printed, though the privacy policy states hosting in the United States. It suits investigators more than IT teams that want a managed inventory.
Strong on
- Plan table shows users, 20K daily enrichment calls and data history by tier
- Natural-language search and an AI assistant on every plan
- Cloud connectors for AWS, Azure and GCP in the attack surface product
Weak on
- No prices are published for any plan, only contact sales buttons
- Core keeps at least one month of history and shows threat data view-only
Skip it if: Small companies that want a simple dashboard and a published monthly price. Every paid plan says contact sales; starter plans begin at 500 credits.
- 8
CybelAngel ranks eighth. Three tiers are described in useful detail, with API keys, review cadence and analyst support by tier, and ISO 27001 certification by A-LIGN is stated. SOC 2 is described as Type I. No price is shown and its AI claim is a single proprietary model across billions of data points. It reads as a managed service more than a tool you operate yourself.
Strong on
- ISO 27001:2022 certification announced in early 2026 and SOC 2 Type I stated
- Essential, Core and Elite tiers differ by analysis depth, reviews and analyst support
- Takedowns for domains and fileservers are included in every package
Weak on
- No price, asset limit or user cap is published
- Platform data handling sits under a separate processing policy we did not read
Skip it if: Teams that want to self-serve a scanner and see a price today. Essential, Core and Elite are described but priced by quote after a call.
- 9
ONYPHE ranks ninth. Its plan table states monthly result caps and history of 7 or up to 48 months, and the legal notice names OVH in France as the host, which helps European buyers. Prices are custom and no AI features or certifications appear on the pages read. It is a data and API product first and an ASM dashboard second.
Strong on
- Plans state result caps and 7 to 48 months of history
- Legal notice names OVH in France as the hosting provider
- REST, Export and Bulk APIs, with an average rate of one request per second
Weak on
- Custom pricing for every plan and no certification stated on pages we read
- No AI features are described on the pages we opened
Skip it if: Managers who want a guided inventory with ready-made remediation workflows. Three plans are listed by monthly results and history depth, all with custom pricing.
- 10
Searchlight Exposure, the former Assetnote platform, ranks last because the page shows no price, no certification and no AI features. Its stated promise is that every finding is proven before it is routed, and the privacy policy places login data in the UK or EU. It is one half of a broader threat exposure product that also includes dark web monitoring.
Strong on
- Findings are described as validated before delivery into Splunk, Jira or a SIEM or SOAR
- Privacy policy states login data held in the UK or EU and files on UK servers
Weak on
- No pricing, plan or certification appears on the product page we read
- Retention baseline of 6 months applies to personal data, not scan data
Skip it if: Buyers who need printed prices, a trial or an AI-centered workflow. The page offers a demo and shows no price or plan.
How these AI attack surface management software were judged
How accurate is AI attack surface management?
Accuracy has two parts: whether the tool finds assets you did not know about, and whether its findings are real. Vendors answer the second part with validation. Hadrian describes agents that sign in as each user role and chain steps into impact, and ProjectDiscovery says Neo replays findings and reports only those with proof. Searchlight Exposure says every finding is proven before it is routed onward. Attaxion claims 97 percent more total assets found, a figure from its own page without a method. Treat all such numbers as marketing until you compare results on a domain you already know well. Intruder and Detectify document their engines more concretely, including a ZAP-based scanner and payload-based tests.
What does attack surface management software cost?
As of November 2026, three vendors print usable numbers. Attaxion lists Starter at $129 a month for up to 40 assets, Plus at $349 for 120 and Business at $949 for 360. Detectify starts at EUR 0 for Starter and EUR 2,500 a year for Standard. runZero says its platform starts at $5,000 and keeps a free Community Edition for 100 or fewer assets. Hadrian prints EUR 1,250 per pentest run by Nova but quotes its discovery product by asset count. Censys, CybelAngel, ONYPHE and Searchlight price through sales, so budget a call before you can compare them.
Where does an attack surface tool store your scan data?
Scan results reveal your weak points, so storage matters. ONYPHE names OVHcloud in France as its hosting provider. Censys states its services are hosted and operated in the United States. ProjectDiscovery says its free tier is US-hosted with zero data retention, and offers dedicated cloud or on-premises options on Enterprise. Intruder shows a SOC 2 Type 2 audit, and Hadrian displays a SOC 2 Type 2 badge. CybelAngel states ISO 27001 certified in early 2026 and SOC 2 Type I. Attaxion, runZero and Searchlight name no hosting region for customer scan data on the pages we opened, so ask in writing.
How hard is it to switch attack surface vendors?
Asset lists and findings export easily, so lock-in is mild at first. The pain arrives with the history you build: tags, ownership assignments, suppressed findings and ticket links all live in the vendor's model. runZero keeps three years of data on Platform and 30 days on Community, so a downgrade drops history. Attaxion offers monthly billing and a discount for annual terms, which keeps exit cheap in year one. ONYPHE and CybelAngel sell tiers by data depth, so moving down a tier removes years of lookback. Run a quarterly export of assets and open findings regardless of vendor.
Which attack surface management tool fits your team?
Match the tool to your asset count and your staff. A company with fewer than 50 domains and one IT generalist fits Attaxion or Intruder, because a trial can be started without a sales call. A mixed estate with operational technology and unmanaged devices points to runZero. A team that builds its own detection and wants an API first suits Censys or ONYPHE. A bank or industrial group that reports to regulators in the EU may prefer Hadrian, Detectify or CybelAngel for their European roots, while an offensive team that wants proof before tickets fits Hadrian, ProjectDiscovery or Searchlight Exposure.
How to choose an AI attack surface management platform in three steps
- Seed each trial with a domain you already audited. Pick one domain where you know the complete list of subdomains, cloud hosts and old marketing sites. Give that same seed to every vendor and compare the output with your own inventory. Count how many assets are missing, how many are false and how many are new and real. Ask each vendor what counts as an asset on the invoice, because Attaxion bills only domains, subdomains and IP addresses while other vendors count differently. A fair test takes a week and shows more than any analyst report.
- Ask what the AI changes in a finding. Write down the AI claim for each tool and ask what it changes in a finding. Natural-language search, as at Censys and runZero, changes how you query. Validation, as at Hadrian and ProjectDiscovery, changes whether a finding is real. Chat assistants such as Intruder's GregAI change how fast an analyst triages. Ask for a sample report where the AI step is visible, and check whether usage credits cap it. Intruder, for instance, gives 1 to 50 AI investigation credits by plan, which is a limit to plan around.
- Put hosting and exit terms in the order form. Before signing, ask where scan data is stored, how long findings are kept after cancellation and whether the vendor's agents ever test production systems without your approval. Request the SOC 2 or ISO 27001 report under NDA where a badge is shown. Confirm the billing unit and the overage rule in writing, then add a right to export all assets and findings in a standard format. A vendor that hesitates on these three points will be slower when something breaks.
Frequently asked questions
What is the best AI attack surface management software in 2026?
Attaxion ranks first here because it prints plan prices, asset limits and what is billed as an asset. runZero is the pick for mixed estates with a free tier, and Detectify fits buyers who want European pricing plus web application scanning. The best choice still depends on your asset count and staff, so test on a domain you know.
What is the difference between attack surface management and vulnerability management?
Attack surface management starts from the outside and looks for assets you may not know about, such as forgotten subdomains and exposed cloud hosts. Vulnerability management scans a known list of systems, often from the inside, and tracks patches. Vendors such as Intruder, Detectify and ProjectDiscovery sell both, so the line is blurred in practice.
Does attack surface management replace penetration testing?
Not fully. Continuous discovery finds exposure between tests, and agent-based validation, as at Hadrian and ProjectDiscovery, goes deeper than a scanner. Auditors and customers may still ask for a human-led test with a signed report. Hadrian prices its Nova pentest from EUR 1,250 per test and Intruder lists AI pentesting from $3,500 per test.
How is an asset counted and billed?
It varies and decides the bill. Attaxion counts domains, subdomains and IP addresses, and leaves ports, certificates and technologies unbilled. Detectify bills Surface Monitoring per domain and scans per target. Hadrian quotes its discovery product by total asset count. Ask each vendor for your own estate counted its way before comparing prices, and ask what happens when you pass the limit.
Do these tools scan internal networks as well?
Some do. runZero scans internal and external assets, including operational technology, with self-hosted explorers. Intruder offers agent-based scanning of internal servers and devices on Pro and above. Detectify has internal scanning agents on Enterprise. Attaxion, Hadrian and CybelAngel focus on the external view, so a mixed estate often needs a second tool.
Which attack surface management vendors are European?
Detectify is based in Sweden, Hadrian in the Netherlands, and CybelAngel and ONYPHE in France. Intruder and Searchlight Exposure are British. runZero, Censys, Attaxion and ProjectDiscovery are American. Home jurisdiction does not guarantee EU data storage, so check the hosting claim separately. ONYPHE names OVHcloud in France, while most others name no region.
Can I try attack surface management for free?
Yes, with limits. runZero keeps a free Community Edition for up to 100 assets, and Intruder has a free forever plan. Detectify lists a Starter plan from EUR 0, ProjectDiscovery offers a free Neo tier with a one-time allowance, and Attaxion gives a 30-day trial and then a limited free edition. Free tiers rarely include automation or full ports.
How often should an attack surface scan run?
Continuous or daily discovery suits internet-facing estates that change weekly. Intruder runs daily cloud checks on paid plans and weekly network scans, while Attaxion's free edition after trial scans only monthly. For a small static site, weekly is enough. What matters more is alerting on new assets within a day, so confirm that setting and its Slack or ticket delivery.