Skip to content
Submit incident
AII-1000-99781
Well documentedThree or more independent publishers report the core facts.

198 AI-related iOS apps leak data from millions of users

Security researchers discovered that 198 AI-related iOS apps on Apple's App Store leak and expose user data, including names, emails, and chat histories. The app 'Chat & Ask AI' exposed over 406 million records from more than 18 million users through improperly secured databases and cloud storage.

19 January 2026 Β· Privacy and surveillance
19 January 2026
AII-1000-997817 sources ↓
Quick facts
Organizations
CovertLabs, Apple
Category
Privacy and surveillance
Country
United States
Source
9to5Mac
Date
19 January 2026
Drafted by
Raidu Incident Detection

What happened

The Firehound project, led by security research lab CovertLabs, identified 198 iOS apps available on the Apple App Store that leak and expose user data. Of the 198 apps, 196 expose user data.

The app 'Chat & Ask AI' leads the rankings for most data exposure, with more than 406 million records from over 18 million users exposed, including chat history. Most apps appear to expose data through improperly secured databases or cloud storage.

Reported impact

User data exposed includes names, emails, and chat history. The 'Chat & Ask AI' app exposed 380 million messages and the entire chat history of over 18 million users.

Affected apps span multiple categories including Education, Entertainment, Graphics & Design, Health & Fitness, Lifestyle, and Social Networking.

Index analysis

The Firehound project scans and indexes apps that leak sensitive user data. Access to detailed scan results is restricted to registered users, with priority given to journalists, law enforcement, and security professionals.

Classification

Organizations
CovertLabs, Apple
Category
Privacy and surveillance
Industry
Consumer services
Country
United States
Harm status
Actual harm
Intent
Unintentional
Timing
Post-deployment
Harmed
Consumers, General public
Failure modes
Data leak
AI systems
Chat & Ask AI

Sources and evidence

This record was researched and written by the Index, based on the following original reporting.

9to5Mac
App Store apps are exposing data from millions of users - 9to5Mac
20 January 2026
Mashable
Firehound ranks apps that leak your data. These are the 10 worst.
20 January 2026
WinBuzzer
Security Researchers Expose Major Data Leaks from 198 iOS AI Apps Affecting Millions of Users
20 January 2026
Cult of Mac
Some AI apps leak loads of your data -- see the worst offenders
20 January 2026
Macworld
These iPhone AI apps expose your data, and they're all over the App Store
20 January 2026
MUO
These highly-rated apps are leaking your data -- find out if you're affected
20 January 2026
News Directory 3
App Data Exposure: Millions of Users at Risk - News Directory 3
20 January 2026