People search CME Group data breach timeline because the brand sits on billions of accounts, credentials, and cloud workloads. BreachHistory indexes 1 CME Group-linked incident. This page maps every attested event through 2026 with internal links to canonical records.
Why CME Group breach history matters
CME Group operates in Technology. Across indexed rows, recurring themes include 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
2013 — ClearPort cyber intrusion; customer information compromised; credential resets
Cataloged incident. CME Group publicly acknowledged a July 2013 cyber intrusion affecting customer information tied to its ClearPort cleared-derivatives workflows, stressing no evidence that Globex trading or broader clearing services were disrupted. Press citing people familiar with the probe described thousands of platform credentials caught up in the incident, prompting forced password rotations and a federal criminal investigation—classic pre-cloud exchange-era perimeter breach fallout. Exposed categories include Customer contact and authentication artifacts per exchange advisories—firms notified directly with limited public row-level accounting. No attested victim count is published for this row yet. See the cme-group2013 and canonical BreachHistory entry.
Patterns and analysis
- Credential theft and social engineering — appears across multiple CME Group catalog entries; prioritize controls that address this class of failure.
- Third-party and supply-chain exposure — appears across multiple CME Group 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 CME Group company page for new 2026+ disclosures.
Canonical BreachHistory hub
Explore every indexed row: breachhistory.com/cme-group · Latest: cme-group2013.
Sources: BreachHistory catalog (1 row for CME Group), company and regulator disclosures cited in individual breach records.