Thank you for
reaching out on the community and telling us about your issue. Unfortunately at this time Quicken Mobile and web does not offer two-factor authentication.
To request this feature to be added in the future, what you can do is create an idea post and add your vote. Our development team frequently uses our idea posts in order to improve Quicken and implement new features requested by customers. This way other users who have the same or a similar request can vote on your idea.I hope this helps!