This happened to a client of mine late last year and it was a challenging thing to get sorted and MailChimp people were wonderful, helping us through this. What happened? Someone accessed her account, uploaded over a million addresses and started to send out phishing email saying that payment was due on an invoice and the recipient's credit card was going to be charged. People began emailing and ringing my client anxious that she was going to charge their accounts for a large sum. Some were … [Read more...]