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MC2 Data data breach

From Breaches, in the HARD wiki · Updated
This article is about the August 2024 breach of MC2 Data. For every breach, see Breaches.

The MC2 Data data breach exposed 2,122,280 accounts in August 2024. The data taken includes passwords, names and email addresses.[1]

Have I Been Pwned verified it and added it to its search on 15 Dec 2024, 4 months later. It is the 309th largest of the 618 breaches in HARD’s list.

What was exposed

MC2 Data’s breach included 3 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.
NamesMakes scam messages personal enough to believe.
Email addressesExpect scam emails that name the company to look genuine.

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, MC2 Data among them, without showing the data.
  2. Change your MC2 Data password.If the account still exists, sign in at MC2 Data 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 MC2 Data.Scammers use breach data to sound genuine. Don’t click links in emails or texts about the breach; go to the site yourself.

Timeline

  • : the breach, as best it can be dated.
  • : Have I Been Pwned verifies the data and adds it to its search, 4 months later.

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. “MC2 Data”, Have I Been Pwned, added 15 Dec 2024. Breach data licensed CC BY 4.0.