Comcast Xfinity customers report their accounts being hacked in widespread attacks that bypass two-factor authentication. These compromised accounts are then used to reset passwords for other services, such as the Coinbase and Gemini crypto exchanges.
Starting on December 19th, many Xfinity email users began receiving notifications that their account information had been changed. However, when attempting to access the accounts, they could not log in as the passwords had been changed.
After regaining access to the accounts, they discovered they had been hacked and a secondary email at the disposable @yopmail.com domain was added to their profile.
Source: Bleeping Computer