ai.type
MEDIUM RISKData breach — December 2017
In December 2017, the virtual keyboard application ai.type was found to have left a huge amount of data publicly facing in an unsecured MongoDB instance. Discovered by researchers at The Kromtech Security Center, the 577GB data set included extensive personal information including over 20 million unique email addresses, social media profiles and address book contacts. The email addresses alone were provided to HIBP to enable impacted users to assess their exposure.
search Check if you were affected — freeData exposed in this breach
What happened in the ai.type data breach?
In December 2017, the virtual keyboard application ai.type was found to have left a huge amount of data publicly facing in an unsecured MongoDB instance. Discovered by researchers at The Kromtech Security Center, the 577GB data set included extensive personal information including over 20 million unique email addresses, social media profiles and address book contacts. The email addresses alone were provided to HIBP to enable impacted users to assess their exposure.
The exposed data included 15 types of personal information. Learn more about what a data breach means for you.
Quick answer — was ai.type hacked?
Yes. ai.type was breached in December 2017. The breach exposed 20,580,060 records including address book contacts, apps installed on devices, cellular network names. 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 ai.type breach so dangerous?
The ai.type breach exposed 20,580,060 records — that is 20.6M people whose personal data is now circulating on the dark web. The combination of address book contacts, apps installed on devices, cellular network names 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 ai.type breach?
Address book contacts — combined with other data, used for identity theft and physical fraud
Apps installed on devices — may be combined with other breach data to build a profile for targeted attacks
Cellular network names — used to build profiles and target you with personalised scams
Dates of birth — used to verify identity for account takeover and fraud
Device information — may be combined with other breach data to build a profile for targeted attacks
Email addresses — used for phishing attacks and credential stuffing against your other accounts
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
IMEI numbers — may be combined with other breach data to build a profile for targeted attacks
IMSI numbers — 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
Names — used to build profiles and target you with personalised scams
Phone numbers — enables SIM swapping attacks and targeted SMS phishing scams
Profile photos — may be combined with other breach data to build a profile for targeted attacks
Social media profiles — may be combined with other breach data to build a profile for targeted attacks
Is the ai.type breach still dangerous in 2026?
Yes. Stolen data from the ai.type 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 2017 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 ai.type 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 ai.type breach
Approximately 20,580,060 user records were exposed in the ai.type breach in December 2017.
Yes. Leaked credentials are actively used in credential stuffing attacks years after a breach. If you reused your ai.type 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 ai.type dataset and tell you instantly whether your email was exposed and what data was taken.
Change your ai.type 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 ai.type breach?
The ai.type data breach affected approximately 20,580,060 users who had accounts with the service. With 20.6M records exposed, this is one of the larger breaches tracked in our database of 970+ known breaches.
If you ever created an account with ai.type 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 ai.type breach
Change your ai.type password immediately
Go to ai.type 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 ai.type 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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