Mailchimp
Data Breach on August 01, 2025
| Data Breach Report | |||
|---|---|---|---|
| Victim | mailchimp.com | ||
| Claimed By | Everest | ||
| Date Discovered | Aug 01, 2025 | ||
| Description | Mailchimp offers email marketing, AI-powered campaigns, audience management, and analytics for businesses of all sizes. | ||
| Leak Size | 767MB |
Credential Exposure for mailchimp.com
We've indexed 743 @mailchimp.com accounts from external breaches, plus 357,878 credentials for mailchimp.com itself.
Last checked Sep 6, 2026
| @mailchimp.com addresses from external breaches | |
|---|---|
| Combo lists | 409 accounts · most recent Aug 29, 2026 |
| Third-party breaches | 377 accounts · across 113 breaches · 268 with a plaintext password · most recent Dec 18, 2025 |
| Phishing pages | 33 accounts · most recent Aug 13, 2026 |
| Passwords for mailchimp.com accounts | |
|---|---|
| Combo lists | 306,308 logins · most recent Sep 6, 2026 |
| Infostealer logs | 120,825 logins · 66,724 infected devices · most recent Sep 6, 2026 |
Logins may belong to customers or to staff, and the data doesn't say which. None of this is necessarily connected to the ransomware attack above.
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