Legitimate Interest Disclosure

Last Updated: April 2026

Cignal.io Ltd. ("Cignal") relies on legitimate interests as a legal basis for certain data processing activities within the programmatic advertising ecosystem.

Purpose of Processing

• facilitate real-time bidding (RTB) transactions
• deliver advertising in programmatic environments
• measure advertising performance
• detect fraud and ensure system security
• improve platform performance and efficiency

Nature of Data

• IP address (for coarse geolocation and fraud detection)
• device characteristics (e.g., browser, operating system)
• device identifiers (where available in bid requests)
• bidstream data related to advertising transactions

Cignal does not:

• create persistent user profiles
• perform cross-device tracking
• use probabilistic identity resolution
• enrich data with third-party identity sources

Assessment of Legitimate Interest

• processing is necessary for RTB operations
• processing is proportionate and limited
• processing does not override user rights

Safeguards

• data minimization
• short retention periods
• no direct identification
• use of consent signals where required

User Rights

Users may object via publishers or consent management platforms.