ai.type

Disclosed Dec 8, 201720,580,060 accountsUnverified

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.

What is known

People affected	20,580,060 (accounts in the leaked data, per Have I Been Pwned)
Disclosed	Dec 8, 2017
Happened	Dec 5, 2017
Attack	Exposed data
Data exposed	Dates of birthEmailsLocationIP addressesNamesPhone numbers
Sector	Tech
Status	Unverified: not yet confirmed by an official notice, a filing or the organization
Check your email	Have I Been Pwned

Sources

Aggregatorhaveibeenpwned.com

Have I Been Pwned: ai.type

Notices filed

Accounts in the dataDec 8, 2017

Have I Been Pwned20,580,060 people

History of this record

Added2026-09-25

First recordedby backfillSource

First seen 2026-09-25 (Have I Been Pwned). Record counts are as reported. Not legal advice.

Everything about ai.type