Electronic surveillance equipment provider ADT filed a form 8-K with the Security and Exchange Commision (SEC) to report “a cybersecurity incident during which unauthorized actors illegally accessed certain databases containing ADT customer order information.”

An 8-K is a report of unscheduled material events or corporate changes at a company that could be of importance to the shareholders or the Securities and Exchange Commission (SEC).

ADT filed the 8-K on August 7, adding that the incident happened “recently,” but refraining from providing an exact date. The company also did not provide an exact number of victims—only that the victims were personally notified about the breach.

Away from ADT’s official disclosures, on July 31, a cybercriminal with the handle “netnsher” announced the leak of a database purportedly belonging to ADT. According to the cybercriminal’s post:

Post announcing a leaked database

“The infamous security company ADT with $5B revenue suffered a databreach exposing over 30,812 records including 30,400 unique emails, the records contain: CustomerEmail, Full address, User ID, Products bought, etc….”

According to ADT, the stolen data included:

• Email addresses
• Phone numbers
• Home addresses

The company also added that:

“Based on its investigation to date, the Company has no reason to believe that customers’ home security systems were compromised during this incident.”

The leak announcement by netnsher promises 30,812 records including 30,400 unique email addresses and “Products bought.”

Although ADT does not believe the attackers stole customers’ credit card data or banking information, that last addition might make the database valuable for burglars. But phishing operations might also use the information to their advantage.

Protecting yourself after a data breach

There are some actions you can take if you are, or suspect you may have been, the victim of a data breach.

• Check the vendor’s advice. Every breach is different, so check with the vendor to find out what’s happened, and follow any specific advice they offer.
• Change your password. You can make a stolen password useless to thieves by changing it. Choose a strong password that you don’t use for anything else. Better yet, let a password manager choose one for you.
• Enable two-factor authentication (2FA). If you can, use a FIDO2-compliant hardware key, laptop or phone as your second factor. Some forms of two-factor authentication (2FA) can be phished just as easily as a password. 2FA that relies on a FIDO2 device can’t be phished.
• Watch out for fake vendors. The thieves may contact you posing as the vendor. Check the vendor website to see if they are contacting victims, and verify the identity of anyone who contacts you using a different communication channel.
• Take your time. Phishing attacks often impersonate people or brands you know, and use themes that require urgent attention, such as missed deliveries, account suspensions, and security alerts.
• Consider not storing your card details. It’s definitely more convenient to get sites to remember your card details for you, but we highly recommend not storing that information on websites.
• Set up identity monitoring. Identity monitoring alerts you if your personal information is found being traded illegally online, and helps you recover after.

Check your digital footprint

Malwarebytes has a free tool for you to check how much of your personal data has been exposed online. Submit your email address (it’s best to give the one you most frequently use) to our free Digital Footprint scan and we’ll give you a report and recommendations.

We don’t just report on threats – we help safeguard your entire digital identity

Cybersecurity risks should never spread beyond a headline. Protect your—and your family’s—personal information by using identity protection.