McDonald’s Built a 515-Page Dossier on Me. It Says I’ll Never Stop Eating There
A WIRED journalist obtained a 515-page record of data held by McDonald’s after using California privacy rights to request it. The dossier shows how the company’s loyalty app tracks purchases and engagement, then uses that information to predict future visits, spending and the likelihood that a customer will stop buying from it. The case illustrates how routine rewards programmes can enable extensive commercial profiling that many customers may not fully expect.
McDonald’s estimated the writer would visit 2.16 times and spend $29.15 over the following six weeks, with an average order of $13.49; it assigned a zero attrition likelihood, meaning it expected the customer to remain loyal. The report also logged locations, transaction histories, offers, loyalty points and Monopoly-code scans, and identified a large Diet Coke and chicken wraps as leading preferences. McDonald’s said it uses past purchases to provide relevant deals and messages, while privacy experts said such detailed tracking is common among large US loyalty schemes.
In short
- McDonald’s loyalty data can create detailed customer profiles.
- The company predicted the writer would not stop buying.
- Privacy experts say extensive loyalty tracking is commonplace.
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The strongest fair case each way — we don't pick a winner.
The case for
Customers voluntarily enrol in McDonald's loyalty programme and expressly consent to transaction tracking. The company uses this data to deliver personalised offers that directly benefit members through relevant discounts, whilst McDonald's gains insights to improve service and marketing efficiency—a legitimate commercial exchange. This practice is standard industry-wide, the data remains within the company's systems for stated purposes, and customers receive tangible value through pricing that reflects their patronage and preferences.
The case against
Although nominally voluntary, the granular scope of tracking—predicting individual behaviour across hundreds of pages of data—far exceeds what most consumers genuinely expect or understand when joining a rewards scheme. The predictive profiling expressly designed to identify customer loyalty raises concerns about behavioural manipulation and commercial exploitation of psychological insights. Conditioning competitive pricing on acceptance of surveillance also creates an untenable choice; true informed consent requires accessibility that most programmes lack, and privacy should not depend on forgoing commercial convenience.
Explained simply
Loyalty programmes offer points or discounts in return for customers sharing information about their purchases. McDonald’s app records activity such as orders, visits, offers used and loyalty points collected.
Companies can analyse that information to estimate what customers might buy, how much they may spend and whether they are likely to return. McDonald’s says it uses purchase history to tailor deals and messages; privacy experts say detailed tracking is common among large US rewards schemes.
These profiles can shape the offers customers see and what companies learn about their habits. The story raises questions about how much personal detail people expect to share when they use a rewards app.