I am logging into a financial site that I use all of the time and after an internet outage over the weekend started getting this error message. How do I fix this?
Attackers might be trying to steal your information from fl.yodlee.com (for example, passwords, messages, or credit cards).
Issuer: COMODO RSA Organization Validation Secure Server CA
Expires on: Aug 8, 2019
Current date: Apr 15, 2019
That's a domain / site security certificate issue. Notice the expiration date. The site admin has to renew their cert. It a DNSSec / DNS key problem as well;
You need to contact the site admin / webmaster. It's not a Comcast related problem.