I find it hard to believe it was just 133 accounts. I just got an email saying mine was one of the accounts compromised, even though I haven't used Mailchimp in over 12 years, and don't remember having ever used them for anything material.
From what I remember either I deleted the account, or they closed for inactivity, so it's weird they still had my data.
From what I remember either I deleted the account, or they closed for inactivity, so it's weird they still had my data.