Is that new. When I signed up, admittedly a number of years ago, they just asked me to tell them the amounts of the two test deposits. No login creds provided.
So I guess it's based on your routing number and whether your bank's online system has the proper framework to allow it.
[1] http://www.ecommercebytes.com/C/abblog/blog.pl?/pl/2009/2/12...