How Loyalty Cards Track Your Purchases Decades Later

Episode 57 of The Privacy Podcast investigates how retail loyalty programs build permanent purchase histories that outlive the card itself. Lucas and Luna trace a single Tesco Clubcard transaction from 2012 to a 2025 data broker report used by auto insurers to adjust premiums. They explain how the GDPR right to erasure collides with aggregated analytics, and why deleting your account may not delete your data. Concrete case: UK's ICO fined a loyalty data processor £275,000 in 2024 for failing to purge historical purchase records after account closure. The hosts discuss whether store-branded credit cards create even deeper tracking, and what consumers can actually do: switch to phone-number-only programs, use masked virtual cards, or pay cash for sensitive purchases. No alarmism — just a clear look at how a free coffee or 5% discount builds a data asset that keeps paying dividends for companies, not customers. #LoyaltyCards #RetailData #PurchaseHistory #GDPR #RightToErasure #DataBrokers #TescoClubcard #ICO #AutoInsurance #ConsumerPrivacy #DataRetention #VirtualCards #CashPayments #PrivacyRights #Technology #Podcast #FexingoBusiness #BusinessPodcast Keep every episode free: buymeacoffee.com/fexingo