Duolingo data breach (2023): was your email exposed?
Duolingo (duolingo.com) suffered a data breach in January 2023 that exposed around 3 million accounts. The leaked records included email addresses, names, spoken languages and usernames. Check whether your email was caught up in it — and lock down your accounts before the data is misused.
Check if my email was exposed — free →What happened in the Duolingo breach?
Duolingo (duolingo.com) was hit by a data breach dated January 2023, exposing around 3 million accounts. Incidents like this happen when attackers break into a company’s user database, or when a misconfigured server or third-party partner leaks it — and the stolen records then spread among other criminals.
The exposed records included email addresses, names, spoken languages and usernames. Leaked data doesn’t simply disappear: it gets copied, sold and re-posted across breach forums and dark-web markets for years. That’s why your information from the Duolingo breach can still be abused long after the original incident — and why checking your exposure and locking down your accounts matters even now.
What data was exposed in the Duolingo breach?
The Duolingo breach exposed email addresses, names, spoken languages and usernames. The more of these are tied to you, the more ways an attacker can impersonate you or break into your other accounts.
How the leaked Duolingo data can be used against you
Because the Duolingo breach exposed email addresses, names, spoken languages and usernames, your email address becomes a target for convincing phishing, often referencing this very breach to look legitimate.
How to check if you were affected
The leaked records themselves aren’t published openly, so the way to know is to check your email against known breach and dark-web databases. Our free tool does exactly that in a few seconds — no account needed.
Check my email against known breaches — free →What to do if your Duolingo account was breached
These steps are prioritized for exactly the kind of data the Duolingo breach exposed.
Add 2FA — ideally an authenticator app or a passkey rather than SMS — to your email, banking and other important accounts, so a stolen password alone can’t get in.
Scammers reference real breaches to sound credible, so treat any email mentioning Duolingo with suspicion, and never use a password-reset link you didn’t request — go to the site directly instead.
Leaked data is resold for years, so a one-time clean-up isn’t enough. Ongoing breach and dark-web monitoring tells you the moment your details reappear, so you can act before an account is misused.
The Duolingo breach, answered
Was my email in the Duolingo breach?
You can find out in seconds with our free breach and dark-web check — enter your email and it tells you whether it appears in the Duolingo breach and other known incidents.
When did the Duolingo breach happen?
The Duolingo data breach is dated January 2023 and exposed roughly 3 million accounts. Note that breached data often surfaces and is resold long after the original date.
What data was exposed in the Duolingo breach?
The exposed records included email addresses, names, spoken languages and usernames. Around 3 million accounts were affected.
What should I do after the Duolingo breach?
Change your Duolingo password and any reused passwords, turn on two-factor authentication, watch for phishing that references Duolingo, and monitor whether your details resurface on the dark web.
Was your email in the Duolingo breach?
Check free in about a minute — then we’ll help you remove your exposed data and keep it monitored.
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