ADT data breach
Was I affected?
ADT confirmed a breach affecting about 5.5 million email addresses, exposing names, phone numbers, addresses and email addresses. You may be affected if you are a current or former ADT customer or lead and received ADT's notice letter.
| Announced | Apr 27, 2026 |
|---|---|
| When it happened | Detected April 20, 2026 |
| Email addresses exposed | 5.5 million |
| Data exposed | Names, Phone numbers, Addresses, Email addresses, Dates of birth and Social Security numbers |
| Status | Confirmed by the company or a regulator filing |
What happened
Home-security company ADT confirmed a breach it detected on April 20, 2026 after ShinyHunters listed it for extortion and later leaked the data. ADT said the information was mostly names, phone numbers and addresses, and in a small share of cases dates of birth and the last four digits of SSNs or tax IDs; Have I Been Pwned counted about 5.5 million unique emails. ADT said payment data and alarm systems were not affected.
What should I do?
- Be wary of door-to-door or phone 'ADT technicians' offering upgrades; verify with ADT's official number before letting anyone in.
- Treat emails, texts and calls that mention ADT, alarm monitoring or billing as suspect; don't click links or share codes, and contact the company through its official app or website.
- Freeze your credit for free at Equifax, Experian and TransUnion so no one can open new accounts in your name.
Check whether your email address is in this breach on Have I Been Pwned (breach data from haveibeenpwned.com, CC BY 4.0).
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Sources
- Home security giant ADT data breach affects 5.5 million people · BleepingComputer (news)
- Hackers claim millions of records stolen in ADT breach · Help Net Security (news)