Skip to content
EVENT / TOPICHistorical

Coinbase vendor breach exposes customer data, company assures fund safety

5 reports5 sources10/28/2026 updated

Current overview (not historical)

AI overview

Coinbase has stated that user funds are safe and denied that its own systems were breached, following reports that third-party analytics provider Amplitude exposed customer contact information. Coinbase has notified affected users of potential phishing and social engineering risks. While Amplitude confirmed the data exposure, Coinbase maintains its internal systems remain secure.

Written with AI from the reporting · updated 10/28/2026

Related events

1
Expand the detailed fact route and sources

Story route

A station-by-station route from the first public evidence onward; every station carries its own evidence and uncertainty.

  1. 1Unclassified fact stationOct 27, 00:00recorded Oct 28, 11:46revised

    Coinbase称用户资金安全,Amplitude数据泄露暴露客户联系信息

    Read original source ↗ CoinDeskReplay this moment in the explorer
    Evidence & revisions · 3 source records
    Subject:
    coinbase
    Action:
    声明用户资金安全
    Object:
    客户资金
    Occurred (fact side):
    Oct 27, 00:00
    CoinDesk ↗Report pageRevision 2 · currently revised
    Published (valid side):
    Oct 28, 11:11
    First seen (known side):
    Oct 28, 11:46
    Decrypt ↗Report pageRevision 2 · currently revised
    Published (valid side):
    Oct 28, 18:10
    First seen (known side):
    Oct 28, 18:17
    CryptoSlate ↗Report pageRevision 2 · currently revised
    Published (valid side):
    Oct 29, 03:40
    First seen (known side):
    Oct 29, 04:12
    Fact stationRevised

    Copy may have been revised later; time replay is bounded. Layer labels group reading only, not causation between layers.

  2. 2Unclassified fact stationOct 28, 15:58report-time onlyrevised

    Coinbase denies systems breach, says vendor exposed customer

    Read original source ↗ CointelegraphReplay this moment in the explorer
    Evidence & revisions · 2 source records
    Subject:
    coinbase
    Action:
    denies systems breach
    Object:
    vendor exposed customer data
    Occurred (fact side):
    not recorded
    Cointelegraph ↗Report pageRevision 2 · currently revised
    Published (valid side):
    Oct 28, 15:42
    First seen (known side):
    Oct 28, 15:58
    BeInCrypto ↗Report pageOriginal / first version
    Published (valid side):
    Oct 28, 19:56
    First seen (known side):
    Oct 28, 20:03
    Fact stationRevisedReport-time only

    Copy may have been revised later; time replay is bounded. Layer labels group reading only, not causation between layers.

Uncertainty marks flag where to check the sources; they are not proven causation.

Report timeline

Explore every side through dated source reports.

Oct 29
  1. CryptoSlateSource report revised
    Coinbase denies breach after Amplitude data leak, says customer funds remain secure

    Report first recorded Oct 29, 04:12

    Coinbase said on X that an incident involving its third‑party analytics provider Amplitude exposed contact details for a small subset of customers but found no evidence of unauthorized access to its own systems. The exchange confirmed that customer funds were not compromised and that it was notifying affected users and regulators. The disclosure came amid a string of cyber incidents affecting South Korean exchanges and brokerages, prompting Binance founder Changpeng Zhao to warn that leaked personal data can be used for phishing, SIM‑swapping and other attacks.

    Read original source ↗
Oct 28
  1. BeInCryptoFact occurrence time unverified
    Coinbase reports vendor breach exposing customer contact data ahead of Q3 earnings

    Report first recorded Oct 28, 20:03

    Coinbase disclosed that a security incident at analytics vendor Amplitude exposed contact information for a small subset of customers. The exchange confirmed no unauthorized access to its own systems and that customer funds remain safe. The breach was announced a day before Coinbase reports third-quarter earnings, with analysts expecting revenue near $1.2 billion. Separately, South Korean exchange Bithumb confirmed an unauthorized party accessed its internal mobile groupware system, but stated customer crypto assets are unaffected.

    Read original source ↗
  2. DecryptSource report revised
    Coinbase customer data exposed in Amplitude analytics breach

    Report first recorded Oct 28, 18:17

    Coinbase disclosed that a security incident at analytics vendor Amplitude affected contact data belonging to a small subset of its customers. The exchange stated it found no evidence of unauthorized access to its own systems and that customer funds were not impacted. Affected customers are being notified in line with legal obligations.

    Read original source ↗
  3. CointelegraphFact occurrence time unverifiedSource report revised
    Coinbase denies breach, says vendor exposed customer data

    Report first recorded Oct 28, 15:58

    Coinbase denies that its systems were breached, stating that a third-party vendor exposed customer data. The company clarified that its platform remains secure and no system-level vulnerabilities were present.

    Read original source ↗
  4. CoinDeskSource report revised
    Coinbase denies hack, says customer funds safe after Amplitude data breach

    Report first recorded Oct 28, 11:46

    Coinbase denied reports of a hack, stating its systems were not accessed without authorization and customer funds remain safe. A breach at third-party analytics provider Amplitude exposed contact information for a small subset of Coinbase customers, who are being notified and may face phishing or social-engineering attempts using exposed email addresses or phone numbers.

    Read original source ↗

Event activity trend

Latest comparable
3
Comparable peak
39Oct 29, 04:00
24h change
-87%

The chart compares consistently observed participants only. Hover or tap to inspect each hour; use arrow keys to move between observations.

Event discussion

Reader opinions are hosted on GitHub Discussions; posting requires a GitHub account. Comments are not verified facts.

Open GitHub Discussions