Best Attack Surface Management Software in 2026
Updated
In short: Qualys External Attack Surface Management is ranked #1 of 28 as of 4 October 2026, ahead of runZero and Bitdefender Total Security. The best-ranked option with a free plan is runZero. The lowest first paid tier on this page is Bitdefender Total Security at $5/mo.
Finding and monitoring exposed assets is the focus of attack surface management software. Compare external and cloud asset discovery to see which sources are covered, and look at attack-path analysis when relationships between exposures matter. Monitoring frequency, asset limits and API access offer additional details for judging operational fit. The ranking starts with Detectify Surface Monitoring, CyCognito Platform and Censys Attack Surface Management, followed by FullHunt and Tenable One Attack Surface Management. Free-plan availability and paid-from pricing are also comparison points, helping you consider cost alongside the discovery and monitoring capabilities listed.
28 attack surface management software ranked on what their makers publish — plans and prices, free tiers, platforms and the facts on their own pages.
#1 Qualys External Attack Surface Management Top pick · 7.0 
#2 runZero Runner-up · 7.0 Free plan · Free #3 Bitdefender Total Security Also great · 6.8 $5/mo
- Free trial apiLinuxWeb
- Free plan
- No
- External asset discovery
- Yes
- Cloud asset discovery
- Yes
RecognisedDocumentedFree planPlatforms - Free planFree trial apiLinuxmacOSself-hostedWebWindows
- Free plan
- Yes
RecognisedDocumentedFree planPlatforms - Free trial AndroidiOSmacOSWindowsRecognisedDocumentedFree planPlatforms$5/mofirst paid tier About Bitdefender Total SecurityVisit site
- Free planFree trial apiWeb
- Free plan
- Yes
- External asset discovery
- Yes
- Attack-path analysis
- Yes
- Cloud asset discovery
- Yes
RecognisedDocumentedFree planPlatforms$149/mofirst paid tier About FullHuntVisit site - AndroidiOSLinuxmacOSself-hostedWebWindows
- External asset discovery
- Yes
- Cloud asset discovery
- Yes
RecognisedDocumentedFree planPlatforms - AndroidapiiOSWeb
- Free plan
- Yes
RecognisedDocumentedFree planPlatforms€49.58/mofirst paid tier About ImmuniWebVisit site - LinuxmacOSWebWindows
- Free plan
- No
- External asset discovery
- Yes
- Attack-path analysis
- Yes
- Cloud asset discovery
- Yes
RecognisedDocumentedFree planPlatforms - Free trial LinuxmacOSWebWindows
- Free plan
- No
- External asset discovery
- Yes
- Attack-path analysis
- Yes
- Cloud asset discovery
- Yes
RecognisedDocumentedFree planPlatforms - Free trial apiLinuxmacOSWebWindows
- Free plan
- No
- External asset discovery
- Yes
- Attack-path analysis
- No
RecognisedDocumentedFree planPlatforms - Free trial apiWeb
- Free plan
- Yes
RecognisedDocumentedFree planPlatforms$379.17/mofirst paid tier About SOCRadar Extended Threat Intelligence PlatformVisit site - apiWeb
- External asset discovery
- Yes
- Attack-path analysis
- Yes
- Cloud asset discovery
- Yes
RecognisedDocumentedFree planPlatforms - apiWeb
- External asset discovery
- Yes
- Attack-path analysis
- Yes
- Cloud asset discovery
- Yes
RecognisedDocumentedFree planPlatforms - Web
- External asset discovery
- Yes
- Attack-path analysis
- Yes
- Cloud asset discovery
- Yes
RecognisedDocumentedFree planPlatforms - apiWeb
- Free plan
- No
- External asset discovery
- Yes
- Cloud asset discovery
- Yes
RecognisedDocumentedFree planPlatforms - WindowsmacOSLinux
- External asset discovery
- Yes
- Cloud asset discovery
- Yes
RecognisedDocumentedFree planPlatforms - Free trial apiWeb
- Free plan
- No
- External asset discovery
- Yes
- Attack-path analysis
- Yes
- Cloud asset discovery
- Yes
RecognisedDocumentedFree planPlatforms - apiWeb
- External asset discovery
- Yes
- Attack-path analysis
- Yes
- Cloud asset discovery
- Yes
RecognisedDocumentedFree planPlatforms - Web
- Free plan
- No
- External asset discovery
- Yes
- Attack-path analysis
- Yes
- Cloud asset discovery
- Yes
RecognisedDocumentedFree planPlatforms - Web
- Free plan
- Yes
- External asset discovery
- Yes
- Cloud asset discovery
- Yes
RecognisedDocumentedFree planPlatforms - WindowsmacOSLinux
- Free plan
- Yes
- External asset discovery
- Yes
RecognisedDocumentedFree planPlatforms - Web
- Attack-path analysis
- Yes
- Cloud asset discovery
- Yes
RecognisedDocumentedFree planPlatforms - Web
- External asset discovery
- Yes
- Attack-path analysis
- Yes
- Cloud asset discovery
- Yes
RecognisedDocumentedFree planPlatforms - Web
- External asset discovery
- Yes
- Cloud asset discovery
- Yes
RecognisedDocumentedFree planPlatforms - Web
- Free plan
- Yes
- Paid from
- 5,000 /yr
- External asset discovery
- Yes
- Cloud asset discovery
- Yes
RecognisedDocumentedFree planPlatforms - Web
- Free plan
- No
- External asset discovery
- Yes
- Cloud asset discovery
- Yes
RecognisedDocumentedFree planPlatforms
Is your app on this list?
Numbered spots on this list can be sponsored. They are labelled, and the editorial order and scores never change for payment.
Questions about this list
Which attack surface management software is ranked first on Everything Xiaomi?
Qualys External Attack Surface Management is ranked #1 of 28 with a score of 7.0. runZero is second and Bitdefender Total Security third.
How many of these have a free plan?
2 of the 25 on this page publish a free plan on their own pricing pages.
Which is the cheapest paid option?
On this page, Bitdefender Total Security has the lowest first paid tier we found: $5/mo.
How is this list ranked?
Ranked on what each maker publishes: documentation depth, a free tier and the platforms it runs on. Paid placements never change a rank.