Regpack
MEDIUM RISKData breach — May 2016
In July 2016, a tweet was posted with a link to an alleged data breach of BlueSnap, a global payment gateway and merchant account provider. The data contained 324k payment records across 105k unique email addresses and included personal attributes such as name, home address and phone number. The data was verified with multiple Have I Been Pwned subscribers who confirmed it also contained valid transactions, partial credit card numbers, expiry dates and CVVs. A downstream consumer of BlueSnap services known as Regpack was subsequently identified as the source of the data after they identified human error had left the transactions exposed on a publicly facing server. A full investigation of the data and statement by Regpack is detailed in the post titled Someone just lost 324k payment records, complete with CVVs.
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What happened in the Regpack data breach?
In July 2016, a tweet was posted with a link to an alleged data breach of BlueSnap, a global payment gateway and merchant account provider. The data contained 324k payment records across 105k unique email addresses and included personal attributes such as name, home address and phone number. The data was verified with multiple Have I Been Pwned subscribers who confirmed it also contained valid transactions, partial credit card numbers, expiry dates and CVVs. A downstream consumer of BlueSnap services known as Regpack was subsequently identified as the source of the data after they identified human error had left the transactions exposed on a publicly facing server. A full investigation of the data and statement by Regpack is detailed in the post titled Someone just lost 324k payment records, complete with CVVs.
The exposed data included 9 types of personal information. Learn more about what a data breach means for you.
Quick answer — was Regpack hacked?
Yes. Regpack was breached in May 2016. The breach exposed 104,977 records including browser user agent details, credit card cvv, email 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 Regpack breach so dangerous?
The Regpack breach exposed 104,977 records — that is a large number of compromised accounts. The combination of browser user agent details, credit card cvv, email 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 Regpack breach?
Browser user agent details — may be combined with other breach data to build a profile for targeted attacks
Credit card CVV — can be used for direct financial fraud and unauthorised transactions
Email addresses — used for phishing attacks and credential stuffing against your other accounts
IP addresses — combined with other data, used for identity theft and physical fraud
Names — used to build profiles and target you with personalised scams
Partial credit card data — can be used for direct financial fraud and unauthorised transactions
Phone numbers — enables SIM swapping attacks and targeted SMS phishing scams
Physical addresses — combined with other data, used for identity theft and physical fraud
Purchases — may be combined with other breach data to build a profile for targeted attacks
Is the Regpack breach still dangerous in 2026?
Yes. Stolen data from the Regpack 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 2016 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 Regpack 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 Regpack breach
Approximately 104,977 user records were exposed in the Regpack breach in May 2016.
Yes. Leaked credentials are actively used in credential stuffing attacks years after a breach. If you reused your Regpack 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 Regpack dataset and tell you instantly whether your email was exposed and what data was taken.
Change your Regpack 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 Regpack breach?
The Regpack data breach affected approximately 104,977 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 Regpack 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 Regpack breach
Change your Regpack password immediately
Go to Regpack 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 Regpack 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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