ADT admits security breach after hackers advertise stolen data on the dark web - eviltoast
The stolen information included email and postal addresses.

Security company ADT disclosed in an SEC filing that hackers obtained “some limited customer information, including email addresses, phone numbers and postal addresses.” TechCrunch reports that ADT’s disclosure follows a seller on a cybercrime forum claiming last week that they had obtained more than 30,000 stolen ADT customer records.