CoinGecko announced that on June 5th, they detected unusual activity on the third-party email marketing platform, GetResponse. The attacker had breached a GetResponse employee's account, resulting in data leakage. The attacker exported 1,916,596 contacts from CoinGecko's GetResponse account and sent phishing emails to 23,723 emails from another GetResponse customer's account. CoinGecko stated that user accounts are still secure, passwords were not leaked, and they are currently reviewing security procedures while seeking to collaborate with vendors to strengthen security protocols.