Breach Database / Z-lib
Yes — Z-lib was breached.
- 9.7 million accounts affected
- Breach occurred 2024-06-20 · z-lib.is
- Verified entry in the Have I Been Pwned catalog
What happened
In June 2024, almost 10M user records from Z-lib were discovered exposed online. Now defunct, Z-lib was a malicious clone of Z-Library, a well-known shadow online platform for pirating books and academic papers. The exposed data included usernames, email addresses, countries of residence, Bitcoin and Monero cryptocurrency wallet addresses, purchases and bcrypt password hashes.
What data was exposed
- Cryptocurrency wallet addresses
- Email addresses
- Geographic locations
- Passwords
- Purchases
- Usernames
What to do right now
- Change your password for this service now. And change it anywhere you reused the same password — attackers try leaked passwords on other sites within hours ("credential stuffing").
- Turn on two-factor authentication. Even a leaked password is useless against an account protected by a second factor. Prefer an authenticator app over SMS.
- Expect convincing phishing emails. Attackers use breached details to write personalized emails. Be suspicious of any message referencing this service.
- Check your other accounts on Have I Been Pwned. Your email address may appear in other breaches you don't know about yet.
- Monitor the apps you use going forward. Clearly watches the breach record for the companies behind your apps and alerts you the moment one appears.
Breach data from Have I Been Pwned. Listing here means the service appears in the public breach record — not that your personal data was affected.