The Infostealer Index · Head-to-head
BBreachsenseor
CConstella Intelligence?
Where Breachsense and Constella Intelligence differ on infostealer intelligence, biggest gap first.
B Breachsense, based in Ohio, monitors infostealer channels, ransomware leak sites and underground forums. Its API returns stolen credentials, session cookies and machine tokens with malware family and hardware ID, and a domain scanner estimates employee and customer exposure.
C Constella Intelligence came out of the 2020 merger of 4iQ and Alto Analytics. It sells identity risk data for account-takeover and fraud prevention through APIs, feeds and its Hunter tool, including an infostealer API with session cookies, hostnames, IPs and malware strain.
BC
Quick take
Breachsense leads by a narrow margin, 70.4 to 68.9 overall. The biggest single difference is machine context, where Constella Intelligence scores 8 against 6. Of the nine criteria, Breachsense is ahead on 4, Constella Intelligence on 3, and 2 are level.
Where they differ
Criteria with more than half a point between them, largest gap first.
Machine-Level Infection Context
CConstella Intelligence +2
BBreachsense 6
CConstella Intelligence 8
Exposure Segmentation
BBreachsense +2
BBreachsense 8
CConstella Intelligence 6
Infostealer Research & Attribution
CConstella Intelligence +2
BBreachsense 6
CConstella Intelligence 8
Free Tools & Free API
BBreachsense +2
BBreachsense 4
CConstella Intelligence 2
Pricing Accessibility & Time-to-Value
BBreachsense +2
BBreachsense 6
CConstella Intelligence 4
Infostealer Specialization
BBreachsense +1
BBreachsense 8
CConstella Intelligence 7
Session Cookie & Token Coverage
CConstella Intelligence +1
BBreachsense 8
CConstella Intelligence 9
Where they are level
Within half a point of each other.
Capabilities
4 of 8 capabilities differ.
| Capability | BBreachsense | CConstella Intelligence |
|---|---|---|
| Machine-level infection data | Partial | Yes |
| Employee vs. customer split | Yes | Partial |
| Third-party / supply-chain exposure | Yes | Partial |
| Free tier / free API | Partial | No |
Same on both: Session cookies & tokens (yes), API access (yes), Self-serve signup (no), Public infostealer research (yes).
Side by side
| Detail | BBreachsense | CConstella Intelligence |
|---|---|---|
| Best suited to | Teams that want stealer data straight into their own tooling | Fraud and account-takeover teams consuming data by API |
| Pricing | Four tiers priced on request by domains and API volume | Enterprise pricing on request |
| Headquarters | Beachwood, Ohio, USA | Los Altos, USA |
| Founded | 2018 | 2020 |
| Ownership | Independent | Independent |
| Website | breachsense.com | constella.ai |
Questions & answers
Which scores higher, Breachsense or Constella Intelligence?
Breachsense, with 70.4/100 against 68.9/100 (ranks #4 and #7).
Where do Breachsense and Constella Intelligence differ most?
On machine-level infection context: Breachsense scores 6 and Constella Intelligence scores 8.
Who is each one a good fit for?
Breachsense suits teams that want stealer data straight into their own tooling. Constella Intelligence suits fraud and account-takeover teams consuming data by API.
More head-to-heads
Each vendor against its closest peers.
See your own infostealer exposure
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Scores are Hudson Rock's editorial opinion of each vendor's infostealer intelligence, based on public information (websites, documentation and published research) as of October 12, 2026. Only infostealer-related capabilities are assessed, not a vendor's overall quality or other products. Field averages, peer matches and comparisons are calculated from those scores.
This is general information, not a recommendation to buy or avoid any product, and it may be out of date: confirm details with each vendor. Product names and logos belong to their owners and are used only to identify them. Vendors can request a correction through Hudson Rock's contact page.