Harm of passing session id as url parameter
So I just noticed that one of the internet banks websites is passing session id as url parameter. ( See image below ) I didn't previously see anywhere that ';' in url, in this case it is after 'private;'. 1) What is the use of this ';'? 2) And why internet bank, which needs to be securest place in the internet is passing session id as url parameter? At first, I thought they are doing it because some of the users disallow use of cookies, but then again, if they allow it, use cookies, if not - url, but I do allow use of cookies, so obviously thats not the case. 3) I guess then they should have