1win
What Happened
In November 2024, the online betting platform 1win suffered a data breach that exposed 96M users. The exposed data included email and IP addresses, phone numbers, dates of birth, country and SHA-256 password hashes. The data was provided to HIBP by a source who requested it be attributed to "Leidhall".
Compromised Data
Recommended Actions
Change Your Password
If you haven't changed your password on this service since the breach, do so immediately.
Enable Two-Factor Authentication
If 2FA is supported, add an extra layer of security to your account.
Check Other Accounts
If you used the same password elsewhere, change those too.
Monitor for Suspicious Activity
Watch for unusual login attempts, spam and phishing emails.
Breach Overview
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Affected Accounts:
96.2 million
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Breach Occurred:
November 2024
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Added to HIBP:
3 Feb 2025
Recommended Actions
Change Your Password
If you haven't changed your 1win password since 2024, do so immediately.
Enable Two-Factor Authentication
Add an extra layer of security to your account.
Check Other Accounts
If you used the same password elsewhere, change those too.
Monitor for Suspicious Activity
Watch for unusual login attempts or messages from your account.
