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deanon

51degrees

Device fingerprinting vendor. Medium liability exposure from consent bypass and persistent tracking. Revenue impact limited to competitive intelligence leakage.

79 IOCs1 detections100% pre-consent1 sites
70
Vendor Risk Score

How This Briefing Works

This report opens with key findings, then maps the gaps between what 51degrees discloses and what BLACKOUT observed at runtime. From there: what it means for your organization, what to do about it, and the detection data and evidence underneath.

Key Findings

Key Findings

1 detection across 1 site100% pre-consent activity
CRITICAL

Pre-Consent Activity

51degrees was observed loading and executing before user consent was obtained on 100% of sites where it was detected.

GDPRePrivacy
Disclosure Gaps

Claims vs. Observed Behavior

1 gaps

pending

UNKNOWN
They Claim

“Requires claims extraction via CDT”

Observed Behavior

Live website analysis pending

Customer Impact

What This Means For You

For security teams: Device fingerprinting creates false positives in fraud detection (legitimate users flagged as suspicious based on device characteristics). For legal: Every fingerprinted device is a potential GDPR data subject access request requiring forensic reconstruction. For marketing: Device data subsidizes competitors' audience targeting at your visitor acquisition cost.
Recommended Actions

What To Do About It

Role-specific actions based on observed behavior

If You Use 51degrees

  • →Require 51degrees to execute post-consent only
  • →Implement device fingerprint data retention limits (30 days maximum)
  • →Add device ID disclosure to privacy policy Article 13 requirements

If You're Evaluating 51degrees

  • →Review DPA for device fingerprint data controller/processor responsibilities
  • →Audit 51degrees data sharing agreements for competitive intelligence clauses
  • →Assess probabilistic matching accuracy claims vs. GDPR data quality obligations

Negotiation Leverage

  • →Device fingerprinting without consent violates GDPR Article 6 - require post-consent execution or contract termination
  • →Persistent tracking extends GDPR liability window - demand 30-day data retention maximum with automated deletion
  • →Device signatures sold to third parties subsidize competitor targeting - require data sharing audit rights with 48hr notice
Runtime Detections

Runtime Detections

3 BTI-C CODES

BLACKOUT observed this vendor's JavaScript executing in a live browser and classified each hostile behavior using our BTI-C (Behavioral Threat Intelligence — Capability) taxonomy. These are not theoretical risks — each code below was triggered by something we watched this vendor's code actually do.

BTI-C09Consent Bypass

Ignoring CMP signals

Impact: Executes device fingerprinting before consent collection. Creates regulatory liability under GDPR Article 6 and ePrivacy Directive. Documented in pre-consent timeline analysis.

BTI-C13Persistence Mechanisms

Long-lived identifiers

Impact: Maintains device signatures across sessions via probabilistic matching. Enables long-term tracking even after cookie deletion. Extends liability window for data subject access requests.

BTI-C14Identity Resolution

PII deanonymization

IOC Manifest

IOC Manifest

75 INDICATORS

Indicators of compromise across 4 categories. Use for detection rules, CSP policies, or Pi-hole blocklists.

TRACK
*51degrees.com/js/search.js*
Tracking script
TRACK
*51degrees.com/51Degrees.core.js*
Tracking script
TRACK
51degrees.com/51Degrees.core.js
Auto-extracted from scan
TRACK
51degrees.com/js/search.min.js
Auto-extracted from scan
Ecosystem

Ecosystem & Supply Chain

Device intelligence layer feeding fraud prevention and audience targeting platforms. Common co-deployments: advertising exchanges requiring device-level attribution, anti-bot vendors needing fingerprint validation, analytics platforms augmenting session data with hardware profiles.
Evidence

Evidence Artifacts

Artifacts collected during analysis, available with evidence-tier access.

HAR Capture

Complete network capture with all requests and responses

IOC Manifest

79 detection signatures across scripts, domains, cookies, and network endpoints

Vendor Details