Starting yesterday, most of my sites that require a password (e.g. bank, mutual fund, credit card) would not accept the passwords. A couple would not allow me to change to a new password, even after I was sent temporary passwords to use to do that. I had to call the sites to have them try, and it took several tries by Support to change the passsword.
Will appreciate suggestions about what happened.
Windows 7; Malwarebytes (paid version)and Avira Premium scan daily.