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Coinbase Confirms Data Exposure from Third-Party Vendor Amplitude

Coinbase Confirms Data Exposure from Third-Party Vendor Amplitude

First seen 28 Oct 2026, 08:18 UTC • •

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ThreatCluster AI
ThreatCluster •October 28, 2026 at 10:38 UTC
  • •Coinbase's systems were not breached; the incident was due to a third-party vendor.
  • •Customer email addresses and phone numbers were exposed, raising phishing risks.
  • •Coinbase is notifying affected customers but has not disclosed the number impacted.

Coinbase reported a data exposure incident stemming from analytics vendor Amplitude, which affected a small subset of its customers. The exchange clarified that its own systems were not breached and that customer funds remain secure. The exposed data includes customer email addresses and phone numbers, which could lead to phishing attempts. Coinbase is notifying impacted customers as required by law, but did not disclose the exact number of affected users or the specific data fields involved. The incident highlights supply-chain risks associated with third-party vendors. Other crypto exchanges and financial firms are also facing cyberattacks, indicating a broader trend of security vulnerabilities in the sector.

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Timeline

2026-10-28
Coinbase discloses data exposure incident
Coinbase announced that customer data was exposed due to an incident at Amplitude, a third-party analytics provider.
Cointelegraph
2026-10-28
Coinbase reassures customer funds are safe
Coinbase confirmed that its systems were not accessed without authorization and that customer funds remain secure.
Coindesk

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Common questions

What customer data was exposed?
The exposed data includes email addresses and phone numbers of a small subset of Coinbase customers.
Are customer funds at risk?
No, Coinbase confirmed that customer funds are safe and its systems were not breached.
How is Coinbase notifying affected customers?
Coinbase is notifying impacted customers via email as required by law.