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Confirmed breach

MC2 Data data breach

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A breach of MC2 Data was added to Have I Been Pwned’s breach database on 15 December 2024. It affected 2,122,280 accounts. Exposed: Passwords and logins, Email addresses and Names. The breach began on 18 August 2024, 119 days before it was reported.

If MC2 Data had your data

  1. Look for MC2 Data’s own notice or letter: it should say what of yours was involved. Keep it.
  2. Change your MC2 Data password, and the same password anywhere else you use it. Turn on two-step sign-in.
  3. Expect scams that use your details: calls, texts or emails pretending to be MC2 Data, your bank or the police. Never give codes or passwords, never approve a sign-in you did not start, never move money.

One email to confirm first. We use your address only for this alert, and one click deletes it.

From the data breach tracker: official notices, breach databases and the news, every fact with its source. Open data (CC BY 4.0) · How the tracker works · Official registers · Corrections and changes · Found a mistake? Tell us and we correct it.