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ADT data breach

From Breaches, in the HARD wiki · Updated
This article is about the April 2026 breach of ADT. For every breach, see Breaches.

The ADT data breach exposed 5,488,888 accounts from adt.com in April 2026. The data taken includes dates of birth, names, physical addresses and email addresses and 2 more kinds of data.[1]

Have I Been Pwned verified it and added it to its search on 27 Apr 2026, within a month. It is the 187th largest of the 618 breaches in HARD’s list.

What was exposed

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

DataWhat it’s used for
Dates of birthUsed to prove who you are to banks and phone companies.
NamesMakes scam messages personal enough to believe.
Physical addressesUsed to prove who you are, and for scam letters and parcels.
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.
Partial government issued IDsPersonal details that make scam messages more convincing.

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, ADT among them, without showing the data.
  2. Distrust messages that mention ADT.Scammers use breach data to sound genuine. Don’t click links in emails or texts about the breach; go to the site yourself.
  3. 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.
  4. Freeze your credit.In the US, free at Equifax, Experian and TransUnion. In Australia, ask Equifax, Experian and illion for a ban. No one can open credit in your name while it’s on.

Timeline

  • : the breach, as best it can be dated.
  • : Have I Been Pwned verifies the data and adds it to its search, within a month.

Similar breaches

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

  • Odido, February 2026, 6.1 million accounts
  • Betterment, January 2026, 1.4 million accounts
  • Figure, January 2026, 967,178 accounts
  • JCPenney, June 2026, 368,418 accounts
  • Aman, April 2026, 215,563 accounts
  • 7-Eleven, April 2026, 185,256 accounts

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

References

  1. ^ Troy Hunt. “ADT”, Have I Been Pwned, added 27 Apr 2026. Breach data licensed CC BY 4.0.