Recently saw my main checking account show a negative balance, with lots of red all over the calendar for the coming week, after logging in some time before 7am

Recently saw my main checking account show a negative balance, with lots of red all over the calendar for the coming week, after logging in some time before 7am. It created a major sense of "OH SHIT", and took up a half hour of working and re-working out the ledger to come to my own conclusion that the web app was having some kind of problem. Logged in two hours later to confirm my math that everything was alright. So fucked up.