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data_enrichment

Theirstack

Theirstack operates as a data enrichment platform with significant signal corruption and competitive intelligence risks. Pre-consent activation and behavioral tracking create legal exposure. The 90% CAC subsidization score reflects visitor behavioral data feeding competitor enrichment databases that enable targeted outreach.

4741 IOCs observed1 detections100% pre-consent1 sites
80
Vendor Risk Score
Tier: HOSTILE
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 Theirstack 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

Theirstack enriches visitor data with company intelligence, capturing behavioral signals for B2B prospecting. BTI codes (C01 defeat device, C06 biometrics, C07 session replay, C09 consent bypass, C10 fingerprinting) indicate sophisticated tracking. Data enrichment category confirms visitor behavioral data flows to databases where competitor sales teams access enriched profiles.

Customer Impact

What This Means For You

Marketing spend trains competitor prospecting databases. Visitor behavioral data enriches competitor intelligence on which companies visit your site, what content they engage with, and when buying intent appears. Legal holds 100% exposure risk from consent bypass and fingerprinting. Enriched profiles accessible to competitors via data marketplace.

Collapse Engine

Risk Channel Breakdown

Oracle
Truth Collapse
25

Signal corruption (25) from behavioral data collection distorts attribution. Theirstack captures visitor sessions before consent, injecting competitor-accessible intelligence into marketing analytics.

Broker
Control Collapse
90

CAC subsidization (90) represents near-total value transfer. Visitor behavioral data feeds enrichment databases where competitors access company intelligence, firmographic data, and intent signals derived from YOUR traffic. You pay infrastructure costs; competitors harvest enriched profiles.

Reaper
Safety Collapse
0

Expands attack surface

Counselor
Legitimacy Collapse
100

Legal tail risk (100) from GDPR/CCPA violations. Pre-consent activation, behavioral biometrics, and fingerprinting create regulatory exposure. Consent bypass defeats CMP controls.

BTI Codes

Threat Indicators

Runtime-observed (BTI-C)

BTI-C01
Defeat Device

Evasion infrastructure, auditor bypass

BTI-C06
Behavioral Biometrics

Keystroke/mouse tracking

BTI-C07
Session Recording

Full session replay

BTI-C09
Consent Bypass

Ignoring CMP signals

BTI-C10
Fingerprinting

Device identification

5
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 Theirstack'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
7

4 for current users · 3 for evaluators

Negotiation Leverage
5

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: theirstackFirst Seen: 2026-01-22Last Updated: 2026-01-22