People search Grubhub data breach timeline because the brand sits on billions of accounts, credentials, and cloud workloads. BreachHistory indexes 3 Grubhub-linked incidents, with headline counts up to 17M+ in catalog rows. This page maps every attested event through 2026 with internal links to canonical records.
Why Grubhub breach history matters
Grubhub operates in Transportation (United States). Across indexed rows, recurring themes include ransomware and extortion, credential theft and social engineering, third-party and supply-chain exposure. Understanding the chronological pattern helps security teams, customers, and regulators separate confirmed disclosures from forum marketing.
Full timeline through 2026
2026 — data download from systems; ShinyHunters extortion (Zendesk / Drift chain)
Cataloged incident. In mid-January 2026, U.S. food-delivery platform Grubhub confirmed to press that unauthorized individuals had downloaded data from certain Grubhub systems, stating it had investigated and stopped the activity and that sensitive categories such as financial information and order history were not affected. Industry reporting cited ShinyHunters as the extortion-oriented group pressuring the company, with sources alleging demands related both to legacy Salesforce-era material tied to prior campaigns and to newer Zendes Exposed categories include Undisclosed downloaded datasets; company denied financial data and order history; Zendesk support context cited in secondary reporting. No attested victim count is published for this row yet. See the grubhub 2026 record and canonical BreachHistory entry.
2025 — 17M, third-party
Cataloged incident. Third-party support account. 70M lines. Names, email, phone, partial card, hashed passwords. Customer, driver, merchant data. Exposed categories include Names, email, phone, partial card, passwords. BreachHistory cites approximately 17M+ affected records in this row. See the grubhub2025 and canonical BreachHistory entry.
2020 — — User data
Cataloged incident. Third-party. User data. Exposed categories include Names, emails, addresses, and other PII. No attested victim count is published for this row yet. See the grubhub2020 and canonical BreachHistory entry.
Patterns and analysis
- Ransomware and extortion — appears across multiple Grubhub catalog entries; prioritize controls that address this class of failure.
- Credential theft and social engineering — appears across multiple Grubhub catalog entries; prioritize controls that address this class of failure.
- Third-party and supply-chain exposure — appears across multiple Grubhub catalog entries; prioritize controls that address this class of failure.
- Record-count hygiene — BreachHistory indexes actor-cited figures separately from company-confirmed totals; read each row's technicalWriteup before treating counts as fact.
- 2026 monitoring — New disclosures roll into this timeline as they are verified or labeled unverified per catalog policy.
What to do if you may be affected
- Step 1: Enable phishing-resistant MFA on every account tied to this brand.
- Step 2: Use unique passwords and a password manager—breach rows often involve credential reuse.
- Step 3: Monitor official company breach notices and regulator filings, not dark-web downloads.
- Step 4: Bookmark the Grubhub company page for new 2026+ disclosures.
Canonical BreachHistory hub
Explore every indexed row: breachhistory.com/grubhub · Latest: grubhub2026.
Sources: BreachHistory catalog (3 rows for Grubhub), company and regulator disclosures cited in individual breach records.