Paolo Ardoino, CEO of Tether, has issued a warning about a possible security breach involving a prominent email vendor frequently used by cryptocurrency companies.

CoinGecko’s co-founder and COO, Bobby Ong, supported the caution, noting that the cryptocurrency data platform’s newsletter service might also be affected.

Email Vendor Compromise

In a post on X, Ardoino stated that they had received two independent confirmations indicating that a prominent vendor commonly used by crypto companies to manage mailing lists might have been compromised.