Multiple banks say 'login doesn't work' but were last updated 6 hrs ago, or 3 days ago etc. Dell Financial Services aka DFS, HSA Bank, TradeKing, Wells Fargo.
I believe the issue is with the security questions because each of these banks asks me one of 3 or 4 security questions at log in. However Mint only stores the answer to one question so only gets it right once in awhile. Each of these banks has been updated in the last couple days, and I haven't changed anything at the bank. So it seems like it's working, just not every time. Also - I get warnings from these banks that someone is trying (and failing) to log into my account when mint fails to get in.