Folks - I wanted to see if I could tap into the tech wisdom here.
Somehow someone was able yesterday to gain online access to my credit card account, and changed the email and address. Then they tried to make a large ($4K) online purchase, which the cc company refused. I found out today when the cc company sent me an email notice of the changed email address. I called them, the account is shut down, and the account information corrected back.
My question: I figure that this means they somehow had my login information, and the only place that exists, so far as I know, is on my computer and the computers of the credit card company. So, I'm thinking one of us was hacked. Is there some way to figure out if it was my system?
I have a router, and run Avast antivirus. Since this all came up earlier today, I've run a malwarebytes scan, found nothing, a Avast virus scan, nothing, and had Avast run a network check which says that none of my devices are visible from the internet.
I'm in the process of changing other financial passwords, but so far haven't found any other problems, including with another account (CD's) I have with the credit card company.
I'm a bit rattled, and would appreciate all thoughts on how this might have happened, or what else I should be doing now.
Ken