People search Gmail data breach timeline because the brand sits on billions of accounts, credentials, and cloud workloads. BreachHistory indexes 2 Gmail-linked incidents, with headline counts up to 5M+ in catalog rows. This page maps every attested event through 2026 with internal links to canonical records.
Why Gmail breach history matters
Gmail operates in Technology (United States). Across indexed rows, recurring themes include mixed intrusion and disclosure events. Understanding the chronological pattern helps security teams, customers, and regulators separate confirmed disclosures from forum marketing.
Full timeline through 2026
2014 — — Gmail: 5 million Gmail account passwords leaked to a…
Cataloged incident. 5 million Gmail account passwords leaked to a forum, alongside passwords from other email providers. Close inspection revealed the user details to be old (3+ years). Multiple individual targeted hacks of third party websites where people used their Gmail IDs, rather than one big dataleak, suspected to be the method. Gmail itself was not hacked. BreachHistory cites approximately 5M+ affected records in this row. See the gmailu and canonical BreachHistory entry.
2013 — — Gmail: A breach that involved keylogging software affected…
Cataloged incident. A breach that involved keylogging software affected at least 93,000 websites. The virus may have originated on a server located in the Netherlands. It first started collecting passwords and usernames on October 21. Approximately 860 computers in the United States were affected. More than 99% of the computers that were affected were outside of the United States. Exposed categories include Personal information. BreachHistory cites approximately 2M+ affected records in this row. See the gmail2013 and canonical BreachHistory entry.
Patterns and analysis
- Mixed intrusion and disclosure events — appears across multiple Gmail 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: Review OAuth app permissions and revoke unused third-party integrations.
- Step 5: Bookmark the Gmail company page for new 2026+ disclosures.
Canonical BreachHistory hub
Explore every indexed row: breachhistory.com/gmail · Latest: gmailu.
Sources: BreachHistory catalog (2 rows for Gmail), company and regulator disclosures cited in individual breach records.