Xfinity suffers data breach, 35 million people affected

"Xfinity discloses data breach affecting over 35 million people"
https://www.bleepingcomputer.com/news/security/xfinity-discloses-data-breach-affecting-over-35-million-people/

How do everyday breaches affect your exchange accounts? Exposed data can be used to triangulate accounts on other sites. This can be especially problematic if you use the same password across multiple sites. Create unique passwords for each online account, and using a password manager can help.