The Infostealer Index · Head-to-head
HHave I Been Pwnedor
SSOS Intelligence?
Where Have I Been Pwned and SOS Intelligence differ on infostealer intelligence, biggest gap first.
H Have I Been Pwned is Troy Hunt's breach-notification service, launched in 2013. Since 2025 it has loaded stealer-log data that verified domain owners can query by email or domain, but it never returns passwords, cookies or machine details.
S SOS Intelligence, an NCSC startup alumnus from London, offers keyword-based dark web monitoring and white-label services for MSSPs. Stealer-log matches arrive as one alert type among others.
HS
Quick take
Have I Been Pwned leads by a wide margin, 53.1 to 40.3 overall. The biggest single difference is segmentation, where Have I Been Pwned scores 7 against 2. Of the nine criteria, Have I Been Pwned is ahead on 6, SOS Intelligence on 2, and 1 are level.
Where they differ
Criteria with more than half a point between them, largest gap first.
Exposure Segmentation
HHave I Been Pwned +5
HHave I Been Pwned 7
SSOS Intelligence 2
Free Tools & Free API
HHave I Been Pwned +4
HHave I Been Pwned 9
SSOS Intelligence 5
Infostealer Research & Attribution
HHave I Been Pwned +3
HHave I Been Pwned 8
SSOS Intelligence 5
Collection Freshness
SSOS Intelligence +2
HHave I Been Pwned 4
SSOS Intelligence 6
Infostealer Specialization
HHave I Been Pwned +1
HHave I Been Pwned 4
SSOS Intelligence 3
Machine-Level Infection Context
SSOS Intelligence +1
HHave I Been Pwned 1
SSOS Intelligence 2
API & Integrations
HHave I Been Pwned +1
HHave I Been Pwned 8
SSOS Intelligence 7
Pricing Accessibility & Time-to-Value
HHave I Been Pwned +1
HHave I Been Pwned 9
SSOS Intelligence 8
Where they are level
Within half a point of each other.
Capabilities
4 of 8 capabilities differ.
| Capability | HHave I Been Pwned | SSOS Intelligence |
|---|---|---|
| Employee vs. customer split | Yes | No |
| Third-party / supply-chain exposure | No | Yes |
| Free tier / free API | Yes | Partial |
| Self-serve signup | Yes | Partial |
Same on both: Machine-level infection data (no), Session cookies & tokens (no), API access (yes), Public infostealer research (yes).
Side by side
| Detail | HHave I Been Pwned | SSOS Intelligence |
|---|---|---|
| Best suited to | Basic, low-cost exposure checks on domains you own | SMBs and MSSPs on a budget |
| Pricing | Free individual search; stealer-log API on Pro plans | From £190 a month, with a 14-day free trial |
| Headquarters | Australia | London, UK |
| Founded | 2013 | Not disclosed |
| Ownership | Independent | Independent |
| Website | haveibeenpwned.com | sosintel.co.uk |
Questions & answers
Which scores higher, Have I Been Pwned or SOS Intelligence?
Have I Been Pwned, with 53.1/100 against 40.3/100 (ranks #14 and #29).
Where do Have I Been Pwned and SOS Intelligence differ most?
On exposure segmentation: Have I Been Pwned scores 7 and SOS Intelligence scores 2.
Who is each one a good fit for?
Have I Been Pwned suits basic, low-cost exposure checks on domains you own. SOS Intelligence suits sMBs and MSSPs on a budget.
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.