Coinbase says an Amplitude incident exposed contact data for a “small subset” of customers; funds were not affected. Exact fields, customer count and attack vector remain undisclosed. The practical risk is more convincing phishing—not a confirmed custody breach. Source: https://unchainedcrypto.com/coinbase-ties-customer-contact-data-exposure-to-vendor-amplitude-says-it-was-not-breached/

Coinbase Says Amplitude Incident Hit Contact and Some Transaction Data, Denies 70K Claim - UnchainedThe exchange said no home addresses or account-access details were involved and funds were untouched, but did not say how many customers were affected.unchainedcrypto.com