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1win data breach

From Breaches, in the HARD wiki · Updated
This article is about the November 2024 breach of 1win. For every breach, see Breaches.

The 1win data breach exposed 96,166,543 accounts from 1win.com in November 2024. The data taken includes passwords, dates of birth, email addresses and phone numbers and 2 more kinds of data.[1]

Have I Been Pwned verified it and added it to its search on 3 Feb 2025, 3 months later. It is the 23rd largest of the 618 breaches in HARD’s list.

What was exposed

1win’s breach included 6 kinds of data. What each lets criminals do:

DataWhat it’s used for
PasswordsCriminals try leaked passwords on email, banking and shopping sites, because people reuse them.
Dates of birthUsed to prove who you are to banks and phone companies.
Email addressesExpect scam emails that name the company to look genuine.
Phone numbersExpect scam texts and calls, and a higher risk of someone moving your number to their SIM.
Geographic locationsRoughly where you live.
IP addressesRoughly where you were when you used the service.

What to do

  1. Check whether you’re in it.Search your email address on Have I Been Pwned. It tells you which breaches it appears in, 1win among them, without showing the data.
  2. Change your 1win password.If the account still exists, sign in at 1win (1win.com) and change it.
  3. Change it anywhere you used the same one.Start with your email, then banking and shopping. Leaked passwords are tried on other sites automatically, within days.
  4. Use a password manager and two-step sign-in.A different password for every site means one breach can’t open the rest. Two-step sign-in stops a leaked password working on its own.
  5. Distrust messages that mention 1win.Scammers use breach data to sound genuine. Don’t click links in emails or texts about the breach; go to the site yourself.
  6. Put a PIN on your phone account.Ask your mobile provider for a port-out PIN, so no one can move your number to their SIM.

Timeline

  • : the breach, as best it can be dated.
  • : Have I Been Pwned verifies the data and adds it to its search, 3 months later.
  • : the entry was last updated.

Similar breaches

Breaches that leaked the same kinds of data, closest in time:

See Breaches for all 618, and Updates for keeping your devices patched.

References

  1. ^ Troy Hunt. “1win”, Have I Been Pwned, added 3 Feb 2025. Breach data licensed CC BY 4.0.