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Quantcast

Quantcast represents maximum Four Horsemen convergence: Oracle corruption through probabilistic modeling, Broker control via bidstream exposure, Reaper surface through persistent tracking, and Counselor violations via systematic consent bypass. The vendor BLACKOUT was built to expose.

67 IOCs observed1 detections100% pre-consent1 sites
70
Vendor Risk Score
Tier: GRAY
Observation Coverage

BLACKOUT observes runtime behavior in the browser. This dossier reflects browser-side execution, which is one of five vendor data-egress classes. Server-to-server transfers, backend integrations, and offline data flows are outside this observation boundary.

BLACKOUT observes runtime behavior and cites the regulations that address that behavior pattern. Legal determinations are the customer's counsel's call.

How This Briefing Works

This dossier opens with key findings, then maps the gap between what Quantcast discloses and what BLACKOUT observed at runtime. From there: what it means for your organization, what to do about it, and the detection evidence underneath. BLACKOUT observes runtime browser behavior and cites the regulations that address each pattern — legal determinations are your counsel's call.

Key Findings

At a Glance

Detections
1

across 1 sites

Pre-Consent Rate
100%

vendor fires before consent

Disclosure Gaps
1

Summary

Briefing

Measurement and advertising vendor with comprehensive tracking infrastructure. Deploys full surveillance stack: behavioral biometrics, session recording, cross-domain sync, consent bypass, persistence mechanisms, and tag manager capabilities. Represents archetypal GTM threat.

Customer Impact

What This Means For You

Marketing teams gain measurement capabilities corrupted by probabilistic modeling (Oracle). Visitor behavior feeds competitor intelligence via bidstream (Broker). Comprehensive tracking creates maximum regulatory exposure (Reaper). Consent bypass activates all threats simultaneously (Counselor). This is why BLACKOUT exists.

Collapse Engine

Risk Channel Breakdown

Oracle
Truth Collapse
15

Probabilistic attribution models corrupt measurement, creating synthetic conversion paths that do not reflect reality

Broker
Control Collapse
100

Bidstream participation exposes visitor behavior to demand ecosystem including direct competitors

Reaper
Safety Collapse
0

Persistent cross-domain tracking creates expansive attack surface for data breach and regulatory action

Counselor
Legitimacy Collapse
100

Systematic pre-consent activation across all tracking components

BTI Codes

Threat Indicators

Runtime-observed (BTI-C)

BTI-C06
Behavioral Biometrics

Keystroke/mouse tracking

BTI-C07
Session Recording

Full session replay

BTI-C08
Cross-Domain Sync

Identity stitching

BTI-C09
Consent Bypass

Ignoring CMP signals

BTI-C13
Persistence Mechanisms

Long-lived identifiers

BTI-C15
Tag Manager

Container/loader (neutral)

6
BTI Consequences Identified

Per-code narrative explanations of what each detected behavior means for your organization

Available in VIDB Subscription

Per-code evidence with full attribution chain, severity rankings, and consequence narratives See pricing →

Disclosure Gaps

Claims vs. Reality

1
Gaps Observed

BLACKOUT analyzed Quantcast's public claims against observed runtime behavior and identified 1 contradiction.

Available in VIDB Subscription

Full claim-vs-reality gap analysis with claim text, observed behavior, severity, regulatory citations (GDPR, CCPA, ePrivacy), and evidence pointers per gap See pricing →

Recommended Actions

What To Do

Recommended Actions
8

4 for current users · 4 for evaluators

Negotiation Leverage
6

contractual leverage points

Available in VIDB Subscription

Role-specific actions (security / legal / marketing / procurement), full negotiation brief with contractual language, and BTI-code-specific consequences See pricing →

Ecosystem

Supply Chain & Pairings

Subprocessor Disclosure Gap
1undisclosed

Claims 0, observed 1

Available in VIDB Subscription

Full supply-chain mapping (loads / loaded-by lists with vendor identities) and the undisclosed-subprocessor list with observation evidence See pricing →

Profile: quantcastFirst Seen: 2026-01-22Last Updated: 2026-01-22