People search Commerzbank data breach timeline because the brand sits on billions of accounts, credentials, and cloud workloads. BreachHistory indexes 2 Commerzbank-linked incidents, with headline counts up to 15K+ in catalog rows. This page maps every attested event through 2026 with internal links to canonical records.
Why Commerzbank breach history matters
Commerzbank operates in Finance. Across indexed rows, recurring themes include third-party and supply-chain exposure, zero-day exploitation and malware. Understanding the chronological pattern helps security teams, customers, and regulators separate confirmed disclosures from forum marketing.
Full timeline through 2026
2023 — account switching service
Cataloged incident. Commerzbank customer data exposed via breach at Majorel Deutschland, the service provider for account switching services. Clop group exploited MOVEit Transfer vulnerability. Low four-digit number of customers affected. Bank's own systems not directly compromised. Exposed categories include Customer names, account numbers, IBANs. BreachHistory cites approximately 5K+ affected records in this row. See the commerzbank2023 and canonical BreachHistory entry.
2016 — 15K credit cards replaced
Cataloged incident. Same incident as Postbank. Commerzbank replaced 15,000 BahnCard credit cards. Service provider breach. Exposed categories include Credit card data. BreachHistory cites approximately 15K+ affected records in this row. See the commerzbank2016 and canonical BreachHistory entry.
Patterns and analysis
- Third-party and supply-chain exposure — appears across multiple Commerzbank catalog entries; prioritize controls that address this class of failure.
- Zero-day exploitation and malware — appears across multiple Commerzbank 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 Commerzbank company page for new 2026+ disclosures.
Canonical BreachHistory hub
Explore every indexed row: breachhistory.com/commerzbank · Latest: commerzbank2023.
Sources: BreachHistory catalog (2 rows for Commerzbank), company and regulator disclosures cited in individual breach records.