Impact & Downstream Threats
This breach carries high risk due to the nature of exposed data fields and the scale of affected records.
- Targeted phishing campaigns using exposed email addresses
Breach Intelligence
Executive Summary
In August 2023, 2.6M records of data scraped from Duolingo were broadly distributed on a popular hacking forum. Obtained by enumerating a vulnerable API, the data had earlier appeared for sale in January 2023 and contained email addresses, names, the languages being learned, XP (experience points), and other data related to learning progress on Duolingo. Whilst some of the data attributes are intentionally public, the ability to map private email addresses to them presents an ongoing risk to user privacy.
About Duolingo
Language learning platform with gamified lessons.
Data Points Exposed
Dark Web Verification
Status: Confirmed
- Dataset containing approximately 2.7M records identified in breach intelligence sources.
- The data is indexed and searchable across breach notification platforms.
Recommended Actions
⚠️ Do not assume this is low sensitivity.
Non-clients may request a breach impact review.
Frequently Asked Questions
In January 2023, Duolingo experienced a data breach that exposed approximately 2.7M records containing personal information.
The exposed data includes fields such as email address, full name, spoken language, username.
Approximately 2.7M records were affected based on current breach intelligence.
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ObscureIQ Advisory
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- A public-facing individual
- A high-profile executive
- A customer of Duolingo
- Or concerned about credential reuse
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