People search Matomo data breach timeline because the brand sits on billions of accounts, credentials, and cloud workloads. BreachHistory indexes 1 Matomo-linked incident, with headline counts up to 14K+ in catalog rows. This page maps every attested event through 2026 with internal links to canonical records.
Why Matomo breach history matters
Matomo operates in Technology. 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
2026 — Alleged breach — 12.6GB SQL database
Unverified claim — treat actor counts cautiously. Threat actor allegedly leaked a 12.6GB SQL database claimed to be from Matomo (open-source analytics). Contains analytics data, user configurations, visitor IPs. Format suggests SQL injection or compromised backup. Authenticity not confirmed by Matomo. Exposed categories include Analytics data, user configs, visitor IPs. BreachHistory cites approximately 14K+ affected records in this row. See the matomo 2026 record and canonical BreachHistory entry.
Patterns and analysis
- Mixed intrusion and disclosure events — appears across multiple Matomo 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 Matomo company page for new 2026+ disclosures.
Canonical BreachHistory hub
Explore every indexed row: breachhistory.com/matomo · Latest: matomo2026.
Sources: BreachHistory catalog (1 row for Matomo), company and regulator disclosures cited in individual breach records.