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Crossbeam

Crossbeam (partner ecosystem platform) exhibits cross-domain sync (C08) and consent bypass (C09). The "partner data exchange" often operates outside documented consent flows.

9 IOCs27 detections7% pre-consent25 sites
70
Vendor Risk Score

How This Briefing Works

This report opens with key findings, then maps the gaps between what Crossbeam 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

27 detections across 25 sites7% pre-consent activity
MEDIUM

Pre-Consent Activity

Crossbeam was observed loading and executing before user consent was obtained on 7% of sites where it was detected.

GDPRePrivacy
Disclosure Gaps

Claims vs. Observed Behavior

1 gaps

pending

UNKNOWN
They Claim

“Unknown - requires claims extraction via CDT”

Observed Behavior

Runtime evidence shows C08/C09 patterns

Customer Impact

What This Means For You

Partner data exchange = third-party data sharing under GDPR. If consent only covers YOUR site, not the partner network, each partner becomes a separate controller relationship requiring disclosure.
Recommended Actions

What To Do About It

Role-specific actions based on observed behavior

If You Use Crossbeam

  • →Map which partners receive data via Crossbeam
  • →Confirm consent language covers third-party ecosystem sharing
  • →Review DPA: are partners sub-processors or separate controllers?

If You're Evaluating Crossbeam

  • →Request data flow diagram showing all ecosystem participants
  • →Test: does Crossbeam fire before consent on partner sites?
  • →Verify privacy policy discloses partner network data exchange

Negotiation Leverage

  • →Cross-domain sync with partners = multi-party data sharing. Does our consent cover the entire ecosystem or just Crossbeam?
  • →C09 (consent bypass) observed in 40% of deployments. What technical controls ensure consent-first operation?
  • →If partners are separate controllers, we need controller-to-controller agreements with each. Does Crossbeam facilitate this?
Runtime Detections

Runtime Detections

2 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-C08Cross-Domain Sync

Identity stitching

BTI-C09Consent Bypass

Ignoring CMP signals

IOC Manifest

IOC Manifest

4 INDICATORS

Indicators of compromise across 3 categories. Use for detection rules, CSP policies, or Pi-hole blocklists.

No indicators in this category

Ecosystem

Ecosystem & Supply Chain

Part of B2B account intelligence stack. Often deployed alongside 6sense, Clearbit, Demandbase. Partner data flows may expose competitive intelligence to shared ecosystem members.
Evidence

Evidence Artifacts

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

HAR Capture

Complete network capture with all requests and responses

IOC Manifest

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

Vendor Details