Comcast Says 35.9 Million Xfinity Customer Accounts Were Hacked

Comcast said that personal data from nearly 35.9 million customers of its Xfinity unit may have been accessed by hackers.

The largest cable operator in the U.S. began notifying customers on Monday about the breach, which happened between Oct. 16 and Oct. 19, due to a software vulnerability. The information stolen included usernames and hashed passwords;
names, contact information, last four digits of Social Security numbers, dates of birth and the secret questions and answers companies often use to verify users.

The breach was discovered Dec. 6, according to a filing reporting it with the Maine Attorney General’s office, which said about 50,782 Maine residents were affected.