The verified by visa 3d secure site always prompts to save a password. If you say yes, it can override the real password for the site that you are on. As this happens with may many sites, the app should be smart enough to either ignore the 3d secure, or be enhanced to fill in the 3d secure.
1Password Version: 6.5.3 (23)
Extension Version: 18.104.22.168
OS Version: OSX & WIndows
Sync Type: Dropbox
Referrer: forum-search:3d secure