Troy Hunt's Mailchimp List
MEDIUM RISKData breach — March 2025
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.
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What happened in the Troy Hunt's Mailchimp List data breach?
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.
The exposed data included 3 types of personal information. Learn more about what a data breach means for you.
Quick answer — was Troy Hunt's Mailchimp List hacked?
Yes. Troy Hunt's Mailchimp List was breached in March 2025. The breach exposed 16,627 records including email addresses, geographic locations, ip addresses. This breach has been independently verified. If your email was involved, your data may still be at risk today. Check if you were affected.
Why was the Troy Hunt's Mailchimp List breach so dangerous?
The Troy Hunt's Mailchimp List breach exposed 16,627 records — that is a large number of compromised accounts. The combination of email addresses, geographic locations, ip addresses makes this a medium-risk breach that should be addressed promptly.
Don't wait to find out — check if your email was exposed in this breach now.
What data was stolen in the Troy Hunt's Mailchimp List breach?
Email addresses — used for phishing attacks and credential stuffing against your other accounts
Geographic locations — may be combined with other breach data to build a profile for targeted attacks
IP addresses — combined with other data, used for identity theft and physical fraud
Is the Troy Hunt's Mailchimp List breach still dangerous in 2026?
Yes. Stolen data from the Troy Hunt's Mailchimp List breach remains dangerous years after the incident. Research shows that over 65% of stolen credentials from older breaches have never been changed by the account holders. Attackers routinely compile data from multiple breaches to build complete profiles, and credentials from 2025 are still actively used in credential stuffing attacks today.
Personal information like email addresses, phone numbers, and dates of birth never expire. Even if you changed your Troy Hunt's Mailchimp List password, the other exposed data can be combined with information from other breaches to target you. Learn more about how long stolen data stays dangerous.
Frequently asked about the Troy Hunt's Mailchimp List breach
Approximately 16,627 user records were exposed in the Troy Hunt's Mailchimp List breach in March 2025.
Yes. Leaked credentials are actively used in credential stuffing attacks years after a breach. If you reused your Troy Hunt's Mailchimp List password elsewhere and haven't changed it, those accounts remain at risk today.
Enter your email in the free checker on EmailLeaked. We scan 12 billion+ breach records including the full Troy Hunt's Mailchimp List dataset and tell you instantly whether your email was exposed and what data was taken.
Change your Troy Hunt's Mailchimp List password immediately, change any other account where you used the same password, enable two-factor authentication on all important accounts, and monitor for phishing emails over the next 90 days.
Who was affected by the Troy Hunt's Mailchimp List breach?
The Troy Hunt's Mailchimp List data breach affected approximately 16,627 users who had accounts with the service. While not the largest breach on record, it still represents a significant number of compromised accounts in our database of 970+ known breaches.
If you ever created an account with Troy Hunt's Mailchimp List or used their services, your data may have been included in this breach. Check your email now to find out. You can also read our guide on what to do immediately after a data breach.
If your email was in the Troy Hunt's Mailchimp List breach
Change your Troy Hunt's Mailchimp List password immediately
Go to Troy Hunt's Mailchimp List and change your password right now. Use a strong, unique password that you have never used anywhere else.
Change any account sharing that password
If you used the same password on other sites, change it on every one of them. Attackers test stolen credentials on hundreds of popular sites within hours.
Enable two-factor authentication
Turn on 2FA on Troy Hunt's Mailchimp List and every important account. Even if your password is known, attackers cannot get in without the second factor.
Check your other accounts for this breach
Run a full email check to see every breach your email appears in — not just this one.
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