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    Privacy Policy

    Effective Date: February 14, 2024

    Last Updated: February 6, 2026

    1. Introduction

    C WIRE AG ("C Wire", "we", "us", or "our") is committed to protecting personal data and ensu...

    This Privacy Policy explains how we collect, use, process, disclose, and protect personal data throu...

    • Our advertising platform and services ("Services")
    • Our website: https://www.cwire.com

    It also explains individuals' privacy rights and choices.

    For the purposes of this policy, "personal data" means any information relating to an identified o...

    2. Scope of Services

    C Wire operates a privacy-first, contextual advertising platform designed to deliver advertising wit...

    We do not collect or process:

    • Names, email addresses, or phone numbers
    • Postal addresses or employment information
    • Government identifiers
    • Sensitive personal data (e.g., religion, health, political opinions)
    • Cross-site behavioural advertising profiles

    3. User Identification Technologies

    To operate our Services, we use limited technical identifiers depending on device and environment.

    3.1 Cookieless Web Identification

    We use a randomly generated identifier stored in browser LocalStorage ("cw_id" or "C Wire ID").

    Characteristics:

    • Domain-specific
    • Not shared across websites
    • Not matched across domains
    • Used solely for delivery logic and frequency capping

    Legal basis:

    Where required by applicable law and the IAB Transparency & Consent Framework, storage and/or access...

    3.2 Mobile Application Identification

    Within mobile apps, our SDK may access platform advertising identifiers:

    • Google Advertising ID (Android)
    • Apple IDFA (iOS)

    Legal basis: User consent where required under the TCF and applicable law.

    4. Data We Collect

    We collect limited technical and advertising delivery data.

    4.1 Identifiers

    • cw_id (LocalStorage identifier)
    • Mobile advertising identifiers

    4.2 Device & Technical Data

    • Browser type and version
    • Device type
    • Operating system
    • Network connection type

    4.3 Browsing & Interaction Data

    • Page URLs
    • Ad impressions
    • Ad interactions
    • Session activity

    4.4 Non-Precise Location Data

    Derived from IP address:

    • Country level
    • City level

    We do not collect precise geolocation.

    4.5 Privacy Signals

    We receive consent and objection signals from CMPs, including:

    • Purpose consent status
    • Vendor consent status
    • Special feature preferences
    • Publisher restrictions

    We store these signals for a maximum of 12 months unless refreshed earlier.

    5. IAB Transparency & Consent Framework

    5.1 Public Attestation

    C Wire participates in the IAB Europe Transparency & Consent Framework (TCF) and processes personal ...

    As a registered TCF vendor, C Wire processes personal data only for the purposes and legal bases dec...

    Where applicable, processing relies on:

    • User consent (e.g., device storage, limited data advertising selection, advertising measurement)
    • Legitimate interest (e.g., security, fraud prevention, ad delivery, privacy signal storage, and serv...

    C Wire does not create or use profiles for personalised advertising or personalised content.

    6. Purposes of Processing and Legal Bases

    We process personal data for the following purposes:

    6.1 Store and/or Access Information on a Device

    (TCF Purpose 1)

    We store or access identifiers such as LocalStorage IDs or mobile advertising identifiers.

    Legal basis: User consent.

    6.2 Use Limited Data to Select Advertising

    (TCF Purpose 2)

    We use contextual and limited technical data to determine which ads to display, including:

    • Website or app context
    • Device type
    • Non-precise location

    No user profiles are created.

    Legal basis: User consent.

    6.3 Measure Advertising Performance

    (TCF Purpose 7)

    We measure campaign delivery and performance, including:

    • Impressions
    • Interaction rates
    • Campaign reach

    Legal basis: User consent.

    6.4 Develop and Improve Services

    (TCF Purpose 10)

    We use aggregated and limited event data to:

    • Improve delivery algorithms
    • Enhance contextual classification
    • Optimize ad formats

    No profiling is conducted.

    Legal basis: Legitimate interest or consent depending on jurisdiction.

    7. Special Purposes (Legitimate Interest)

    Under TCF Special Purposes, we process data where operationally necessary.

    7.1 Security, Fraud Prevention, and Error Detection

    We process data to:

    • Detect invalid traffic
    • Prevent fraud
    • Secure systems
    • Debug errors

    Legal basis: Legitimate interest.

    7.2 Deliver and Present Advertising

    We process technical data necessary to:

    • Serve ads
    • Ensure format compatibility
    • Enable rendering on devices

    Legal basis: Legitimate interest.

    7.3 Save and Communicate Privacy Choices

    We store and transmit consent signals to ensure advertising is delivered in accordance with user pre...

    Legal basis: Legitimate interest.

    8. Data Retention

    We retain user-level data for a maximum of 12 months (365 days) from collection.

    Exceptions:

    • Aggregated or de-identified data may be retained longer
    • Fraud/security logs may be retained where legally required

    Identifiers stored on devices expire or are refreshed within this timeframe.

    9. Data Disclosure

    We may share data with:

    Service Providers

    Infrastructure, hosting, and measurement partners acting on our behalf.

    Geo-Location Providers

    We may transmit IP addresses to partners solely to derive non-precise location.

    Legal and Corporate Transfers

    We may disclose data:

    • To comply with law
    • In mergers or acquisitions
    • To protect rights or safety

    We do not sell personal data.

    10. International Transfers

    C Wire operates from Switzerland and Europe.

    We store and process data within jurisdictions deemed adequate under applicable data protection law.

    Remote access may occur via secure VPN connections.

    11. Data Subject Rights

    Individuals in the EEA or Switzerland may:

    • Access their data
    • Request erasure
    • Request restriction
    • Object to processing
    • Request portability

    Requests: dpo@cwire.com

    12. Device Storage Disclosure

    We do not use cookies.

    We use alternative storage technologies such as:

    • LocalStorage
    • Mobile advertising identifiers

    Details are disclosed at:

    https://cdn.cwi.re/artifacts/iab/iab.json

    13. Children's Privacy

    Our Services are not directed to individuals under the legal age of majority.

    14. Security

    We implement industry-standard safeguards including encryption, monitoring, and access controls.

    15. Contact

    C Wire AG

    Grubenstrasse 54

    8045 Zürich

    Switzerland

    Email: dpo@cwire.com