The 2026 Infostealer Index
An independent, deep-dive analysis of Hudson Rock’s benchmark threat intelligence evaluations. Ranking 34 vendors across 9 critical vectors.
As infostealer malware continues to dominate the cyber threat landscape—fueling devastating breaches like the massive AI supply chain hack of 2026—the need for reliable infostealer intelligence has never been more critical. We recently analyzed Hudson Rock’s Infostealer Index, the industry’s premier benchmark for threat intelligence vendors.
The 2026 index evaluates 34 different vendors across 9 rigorous criteria, breaking the market down into specialized categories. Below is our complete summary of the findings, including a deep dive into the methodology, the leaderboard, and how the top platforms compare.
The Methodology
To accurately rank capabilities, the index evaluates platforms based on a 100-point scale derived from nine crucial metrics:
01 Specialization
Is the vendor inherently focused on infostealer malware, or is it a generalist tool incorporating feeds?
02 Machine Context
The depth of information provided about the infected machine itself (IPs, OS versions, hardware specs).
03 Segmentation
How effectively the raw data is parsed, structured, and made actionable for security operations.
04 Sessions
Capabilities around tracking and validating active, authenticated sessions (cookies) extracted by malware.
05 Freshness
The velocity at which newly compromised data is ingested and available to the platform’s users.
06 Research
The quality of proprietary threat research, malware analysis, and reporting provided by the vendor.
07 Free Access
Availability of community tools, free trials, employee notifications, or public search capabilities.
08 API
The robustness, technical documentation, and ease of integration of the vendor’s enterprise API.
09 Accessibility
Overall user experience (UX/UI), interface design, and minimization of operational friction.
The Market Layout
The 34 evaluated vendors fall into three distinct classifications based on their primary operational model:
- Infostealer Specialists (9 Vendors): Platforms explicitly built from the ground up to harvest, parse, and act on compromised machine data. (e.g., Hudson Rock, SpyCloud)
- CTI Platforms (19 Vendors): Broad Cyber Threat Intelligence platforms that include infostealer data as a module alongside dark web monitoring and OSINT. (e.g., Flare, Recorded Future)
- Lookup & Search (6 Vendors): Search engines primarily focused on querying massive datasets of leaks, pastes, and stealer logs. (e.g., Have I Been Pwned, LeakRadar)
Top 5 Vendors Analyzed
#1 Hudson Rock
Infostealer SpecialistThe undisputed leader. Perfect scores in Specialization, Machine Context, Segmentation, Research, and Free Access.
#2 Flare
CTI PlatformThe highest-rated generalist CTI platform, featuring exceptional interface design and deep stealer-log coverage.
#3 SpyCloud
Infostealer SpecialistA powerhouse in session management and identity threat protection, slightly lagging in public free access tools.
#4 Breachsense
Infostealer SpecialistAPI-first dark web and stealer-log monitor offering highly consistent backend capabilities.
#5 Lunar (Webz.io)
Infostealer SpecialistTied for 4th, Lunar provides incredible free access to compromised-credential monitoring.
The Complete 2026 Leaderboard
| Rank | Vendor | Category | Overall Score | Specialization | Context | Sessions | API |
|---|---|---|---|---|---|---|---|
| #1 | Hudson Rock | Specialist | 96.2 | 10 | 10 | 9 | 9 |
| #2 | Flare | CTI | 82.8 | 7 | 9 | 9 | 9 |
| #3 | SpyCloud | Specialist | 81.3 | 9 | 8 | 10 | 9 |
| #4 | Breachsense | Specialist | 70.4 | 8 | 6 | 8 | 9 |
| #5 | Lunar (Webz.io) | Specialist | 70.4 | 8 | 6 | 8 | 5 |
| #6 | SOCRadar | CTI | 70.4 | 5 | 9 | 8 | 6 |
| #7 | Constella Intelligence | Specialist | 68.9 | 7 | 8 | 9 | 9 |
| #8 | Recorded Future | CTI | 68.0 | 5 | 9 | 6 | 9 |
| #9 | NordStellar | CTI | 67.8 | 6 | 8 | 9 | 8 |
| #10 | KELA | CTI | 66.6 | 6 | 6 | 8 | 6 |
| #11 | Flashpoint | CTI | 62.1 | 5 | 8 | 8 | 8 |
| #12 | WhiteIntel | Specialist | 61.1 | 8 | 5 | 6 | 8 |
| #13 | Check Point (Cyberint) | CTI | 53.1 | 4 | 6 | 3 | 8 |
| #14 | Have I Been Pwned | Search | 53.1 | 4 | 1 | 1 | 8 |
| #15 | Group-IB | CTI | 50.1 | 4 | 5 | 5 | 8 |
| #16 | DarkStrata | Specialist | 49.3 | 8 | 3 | 4 | 8 |
| #17 | Outpost24 Threat Compass | CTI | 48.9 | 4 | 5 | 2 | 5 |
| #18 | CybelAngel | CTI | 48.1 | 4 | 6 | 5 | 5 |
| #19 | LeakRadar | Search | 48.1 | 7 | 2 | 1 | 8 |
| #20 | StealthMole | CTI | 47.8 | 5 | 3 | 3 | 7 |
| #21 | Cyble | CTI | 47.5 | 4 | 3 | 3 | 6 |
| #22 | Bitsight (Cybersixgill) | CTI | 46.7 | 4 | 4 | 5 | 6 |
| #23 | Farnsworth Intelligence | Search | 45.5 | 6 | 1 | 5 | 3 |
| #24 | Searchlight Cyber | CTI | 44.9 | 4 | 5 | 2 | 5 |
| #25 | CloudSEK | CTI | 43.9 | 3 | 5 | 2 | 5 |
| #26 | DarkOwl | Search | 43.6 | 3 | 2 | 2 | 9 |
| #27 | Intelligence X | Search | 41.2 | 4 | 2 | 1 | 8 |
| #28 | ThreatMon | CTI | 41.0 | 4 | 5 | 1 | 5 |
| #29 | SOS Intelligence | CTI | 40.3 | 3 | 2 | 1 | 7 |
| #30 | HackedList | Specialist | 38.2 | 8 | 2 | 1 | 4 |
| #31 | LeakCheck | Search | 36.9 | 4 | 1 | 1 | 7 |
| #32 | Hold Security | Specialist | 36.4 | 6 | 2 | 2 | 2 |
| #33 | Resecurity | CTI | 35.9 | 3 | 2 | 1 | 5 |
| #34 | Kaduu | CTI | 33.3 | 3 | 2 | 1 | 5 |
The Takeaway
The 2026 Hudson Rock Infostealer Index validates a growing industry consensus: specializing in infostealer malware yields vastly superior threat intelligence compared to generalized platforms that treat it as a secondary feed.
Hudson Rock dominates the market by providing unparalleled machine context and segmentation. However, depending on an organization’s specific operational needs, platforms like Flare (for CTI breadth) and SpyCloud (for hardcore Identity protection) stand as highly capable alternatives.
As threat actors continue to bypass standard MFA via session cookie theft, leveraging vendors that score highly in Sessions and Machine Context is no longer optional for modern enterprises.
