What was exposed, when it happened, and which databases confirm it.
- accounts
- 16,627
- Breached
- March 25, 2025
- Last Update
- March 29, 2025
Were you caught in this breach?
Search your email, phone number or username against every record CheckLeaked indexes.
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What happened
In March 2025, a phishing attack successfully gained access to Troy Hunt's Mailchimp account and automatically exported a list of people who had subscribed to the newsletter for his personal blog. The exported list contained 16k email addresses and other data automatically collected by Mailchimp including IP address and a derived latitude, longitude and time zone.
Compromised Info
- Email addresses
- Geographic locations
- IP addresses
Attestation
Four independent databases catalog this breach and they do not always agree. Each lane below is one source’s own count.
Sources & Link Methods
- HIBP
FAQ
What was leaked in the TroyHuntMailchimpList breach?
The TroyHuntMailchimpList breach exposed: Email addresses, Geographic locations, and IP addresses.
When did the TroyHuntMailchimpList breach happen?
The TroyHuntMailchimpList breach was disclosed on March 25, 2025 and affected 16,627 records.
Am I affected by the TroyHuntMailchimpList breach?
Search your email, phone or username at checkleaked.cc to find out whether your data appears in the TroyHuntMailchimpList leak.