Coinone warns of phishing, identity theft after data breach

Coinone disclosed a data breach affecting customer information and warned users to watch for phishing and identity theft. The exchange said the incident stemmed from an outsourced support service, underscoring the security risks of third-party vendors that handle sensitive data. The breach adds to a string of security and operational incidents at South Korean crypto exchanges, a market where retail participation is heavy. Coinone has not disclosed how many accounts were affected or whether funds were compromised. Users should watch for follow-up notices on the scope of the leak and any mandatory password or API key resets.