Your financial transaction data flows to multiple third-party financial institutions and payment networks as part of normal processing — this sharing is largely non-optional if you use Square-powered payment services.
Square collects a wide range of personal and financial data — including transaction history, device identifiers, location data, government-issued ID, and inferred behavioral profiles — from both merchants and the consumers who shop at Square-powered businesses, even without a direct account relationship. This data may be shared with financial institution partners, service providers, and used for cross-product profiling and marketing purposes, which creates meaningful privacy exposure for everyday buyers. You can submit a data access, correction, or deletion request through Square's privacy rights portal at https://squareup.com/us/en/privacy/request.