ADT

Medium

Data breach — April 2026

In April 2026, home security firm ADT confirmed a data breach by ShinyHunters, which listed the company on its website as part of a "pay or leak" extortion attempt. The breach impacted 5.5M unique email addresses along with names, phone numbers and physical addresses. ADT also advised that "in a small percentage of cases, dates of birth and the last four digits of Social Security numbers or Tax IDs were included" and that it had contacted all affected people.

5.5M

Records exposed

2026

Year

Data types

Free

To check

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Quick answer — was ADT breached?

Yes. ADT was breached in April 2026, exposing 5,488,888 records including dates of birth, email addresses, names. This breach has been independently verified. If your email was involved, your data may still be at risk today. Check if you were affected.

What happened in the ADT data breach?

The exposed data included 6 types of personal information. Learn more about what a data breach means for you.

Why was the ADT breach so dangerous?

The ADT breach exposed 5,488,888 records — 5.5M people whose personal data is now circulating in criminal markets.

Don't wait to find out — check if your email was exposed in this breach.

What data was stolen in the ADT breach?

Dates of birth Email addresses Names Partial government issued IDs Phone numbers Physical addresses

Dates of birth — used to verify identity for account takeover and fraud

Email addresses — used for phishing attacks and credential stuffing against your other accounts

Names — used to build profiles and target you with personalised scams

Partial government issued IDs — enables full identity theft including fraudulent credit applications

Phone numbers — enables SIM-swapping attacks and targeted SMS phishing

Physical addresses — combined with other data, used for identity theft and physical fraud

Is the ADT breach still dangerous in 2026?

Yes. Stolen data from the ADT breach remains dangerous years after the incident. Attackers routinely compile data from multiple breaches to build complete profiles, and credentials from 2026 are still actively used in automated attacks today.

Personal information like email addresses, phone numbers, and dates of birth does not expire. Even if you changed your ADT password, the other exposed data can be combined with information from other breaches to target you. Learn how long stolen data stays dangerous.

What to do if your email was in the ADT breach

Change your ADT password immediately

Log into ADT and change your password to something strong and unique — one you have never used anywhere else.

Change any account sharing that password

If you reused this password elsewhere, change it on every affected account. Attackers test stolen credentials against hundreds of popular sites within hours.

Enable two-factor authentication

Turn on 2FA on ADT and every important account. Even if your password is known, attackers cannot access the account without the second factor.

Check your other accounts for this breach

Run a full email scan to see every breach your address appears in — not just this one.

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Frequently asked about the ADT breach

How many people were affected by the ADT data breach?

Approximately 5,488,888 user records were exposed in the ADT breach in April 2026.

Is the ADT breach still a risk in 2026?

Yes. Leaked credentials are actively used in credential-stuffing attacks years after a breach. If you reused your ADT password elsewhere and have not changed it, those accounts remain at risk today.

How do I check if my email was in the ADT breach?

Enter your email in the free checker on EmailLeaked. We scan millions of breach records including the ADT dataset and tell you instantly whether your email was exposed and what data was taken.

What should I do if I was in the ADT breach?

Change your ADT password immediately, update any account where you used the same password, enable two-factor authentication on all important accounts, and monitor for phishing emails over the next 90 days.

How this breach page is reviewed

Breach pages are built from structured breach records and reviewed for practical risk guidance by EmailLeaked. Risk labels reflect exposed data types and are intended to help readers prioritise action.

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