McDonald's Data Breach History

This page tracks the McDonald's data breach history and cybersecurity incidents affecting McDonald's (United States). BreachHistory currently indexes 9 publicly disclosed or catalogued incidents spanning 2010 through 2026, with approximately 66.7 million records reported as exposed across all indexed events. These totals may include overlapping datasets or third-party estimates and should not be interpreted as unique affected users.

The McDonald's breach timeline includes major data breaches, cyber attacks, data leaks, credential exposures, API abuse, and other security incidents. Each incident provides details on the estimated records exposed, attack method, affected data types, and supporting public sources. Currently, 0 incidents are company-confirmed, while 1 remain unverified claims pending independent verification.

Largest McDonald's Data Breaches

The largest indexed incidents include the 2025 McHire/Paradox.ai breach — 64M job applicant records, the 2026 McDonald's — TheHatman Azure tenant directory sale claim (unverified; ~1.7M), and the 2021 — MacDonalds: Hacking, 1,000,000 records, along with additional historical incidents involving exposed passwords, public databases, and large-scale data scraping. Record counts originating from threat actors or leak sites should be treated as estimates unless confirmed by McDonald's or a regulator. Below is the list of large data breaches:

• 2025 2025 McHire/Paradox.ai breach — 64M job applicant records — about 64.0M records exposed · Catalogued incident
• 2026 2026 McDonald's — TheHatman Azure tenant directory sale claim (unverified; ~1.7M) — about 1.7M records exposed · Unverified claim
• 2021 2021 — MacDonalds: Hacking, 1,000,000 records — about 1.0M records exposed · Catalogued incident
• 2012 2012 — McDonald's: A dishonest McDonald's employee confessed to using… — about 282 records exposed · Catalogued incident
• 2011 2011 — McDonald's: A cashier pleaded guilty to conspiracy to commit… — about 185 records exposed · Catalogued incident
• 2019 2019 — A teen employee at a Howard County McDonald's has been… — about 14 records exposed · Catalogued incident

What Information Was Exposed?

Depending on the incident, exposed data may include email addresses, phone numbers, names, physical addresses, payment card and financial account data, health and medical (PHI) records, and other personal information (PII). The exact data varies between incidents, so review each breach page before assuming your information was affected.

McDonald's Data Breach 2026

At the time of this update, BreachHistory catalogues 1 2026 incident related to McDonald's. Most recent entry: 2026 McDonald's — TheHatman Azure tenant directory sale claim (unverified; ~1.7M). New incidents are added as official disclosures, regulatory filings, or credible cybersecurity reports become available.

What To Do If You Were Affected

If you believe your account may have been involved in a McDonald's data breach, change any reused passwords, enable multi-factor authentication (MFA), monitor your account for suspicious activity, and be cautious of phishing emails or fake breach notifications.

This McDonald's breach history is maintained by BreachHistory using public disclosures, regulatory filings, security research, and clearly labelled third-party claims. For the complete breach timeline, records exposed, incident details, and AI Breach Risk Score, explore the sections on this page.