Hi Dantman, this is a useful and powerful extension though it should only be used, as described by you, with utmost care and as I may add ideally only with the written permission of the user who's account is being sudoed. I have just tested it. So far only accessing a foreign account is being logged. To create more transparency it should also log logging out of a foreign account. Another thing is that the log actions are not displayed on Special:RecentChanges though Sudo-Log it is a public log. Perhaps you might want to add this to later versions of this extension. Thank you for your work which I appreciate a lot. Cheers