Verifications.io
MEDIUM RISKData breach — February 2019
In February 2019, the email address validation service verifications.io suffered a data breach. Discovered by Bob Diachenko and Vinny Troia, the breach was due to the data being stored in a MongoDB instance left publicly facing without a password and resulted in 763 million unique email addresses being exposed. Many records within the data also included additional personal attributes such as names, phone numbers, IP addresses, dates of birth and genders. No passwords were included in the data. The Verifications.io website went offline during the disclosure process, although an archived copy remains viewable.
search Check if you were affected — freeData exposed in this breach
What happened in the Verifications.io data breach?
In February 2019, the email address validation service verifications.io suffered a data breach. Discovered by Bob Diachenko and Vinny Troia, the breach was due to the data being stored in a MongoDB instance left publicly facing without a password and resulted in 763 million unique email addresses being exposed. Many records within the data also included additional personal attributes such as names, phone numbers, IP addresses, dates of birth and genders. No passwords were included in the data. The Verifications.io website went offline during the disclosure process, although an archived copy remains viewable.
The exposed data included 10 types of personal information. Learn more about what a data breach means for you.
Quick answer — was Verifications.io hacked?
Yes. Verifications.io was breached in February 2019. The breach exposed 763,117,241 records including dates of birth, email addresses, employers. 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 Verifications.io breach so dangerous?
The Verifications.io breach exposed 763,117,241 records — that is 763.1M people whose personal data is now circulating on the dark web. The combination of dates of birth, email addresses, employers 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 Verifications.io breach?
Dates of birth — used to verify identity for account takeover and fraud
Email addresses — used for phishing attacks and credential stuffing against your other accounts
Employers — may be combined with other breach data to build a profile for targeted attacks
Genders — may be combined with other breach data to build a profile for targeted attacks
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
Job titles — may be combined with other breach data to build a profile for targeted attacks
Names — used to build profiles and target you with personalised scams
Phone numbers — enables SIM swapping attacks and targeted SMS phishing scams
Physical addresses — combined with other data, used for identity theft and physical fraud
Is the Verifications.io breach still dangerous in 2026?
Yes. Stolen data from the Verifications.io 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 2019 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 Verifications.io 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 Verifications.io breach
Approximately 763,117,241 user records were exposed in the Verifications.io breach in February 2019.
Yes. Leaked credentials are actively used in credential stuffing attacks years after a breach. If you reused your Verifications.io 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 Verifications.io dataset and tell you instantly whether your email was exposed and what data was taken.
Change your Verifications.io 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 Verifications.io breach?
The Verifications.io data breach affected approximately 763,117,241 users who had accounts with the service. With 763.1M records exposed, this is one of the larger breaches tracked in our database of 970+ known breaches.
If you ever created an account with Verifications.io 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 Verifications.io breach
Change your Verifications.io password immediately
Go to Verifications.io 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 Verifications.io 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
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