Gemini, a cryptocurrency exchange, has reported that it believes a third-party vendor was behind phishing campaigns that targeted some of its customers.
Chinese media outlet Wu Blockchain has reported that up to 5.7 million users were affected, with their email addresses and phone numbers having been leaked.
Nevertheless, the company has reassured customers that no account information or systems were compromised, and all funds and accounts are safe.
The responsible party has yet to be identified, but Gemini has provided recommendations to those affected.
Phishing attempts involve fraudsters sending deceptive messages in an attempt to acquire confidential details, which can then be used to install harmful software or ransomware.