Duolingo data breach: 2.7M accounts exposed
Severity: medium · Patch status: no-fix-needed · Since 2023-08-23
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. Exposed data: email addresses, names, spoken languages, usernames. The breach dates from Jan 24, 2023; Have I Been Pwned loaded it on Aug 23, 2023.
What to do
- If you had a Duolingo account, change its password and the password of any other account that reused it.
- Turn on multi-factor authentication wherever it is offered.
- Check whether your addresses are in this breach at https://haveibeenpwned.com.
Sources
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