I consulted Vulpix about the security issue the other day, he said that he'd talk to you an Unsane about it. His last message made it sound like the two of you had already spoken about it, so that matter seems to be as solved as it can be until someone gets around to working on it.
The failure to login problem was a separate issue and still probably needs another pair of eyes. I couldnt make much from the logs, but im not very familiar with it. Skype would try to login for ~20-30 seconds, then it'd fail. Further attempts would cause the protocol icon to spin for less than a second and just immediately stop.
I was able to get it to log back in after 2-3 hours of fiddling, reboots, program updates, restarting Miranda, and manually clearing some of the database entries like TokenSecret and some of the other login-based items. I didnt seem to be my net connection and I was able to login via the website.
On a side note: It seems that clearing the TokenSecret entry -might- have something to do with fixing the problem, however it typically does not immediately resolve the problem. Ive done it probably 3 times now, and each time the issue tends to resolve itself ~10-15 minutes later, allowing me to log back in again. Could be coincidence, or may be related.
If i had to guess at what could be happening; perhaps Skype is denying my token, Miranda might be failing to update it for some reason, and my repeated attempts to connect with an expired token possibly cause a temporary IP blacklisting, so that even when I clear my token, the service still wont log me in. (But thats just a guess and has not specifically been tested for via a complete log from start to finish.)