some points to make...
padlock
a padlock in your URL bar (the bit where you type which website to visit) simply means that there is an SSL certificate in place.
generally green means everything is under SSL
generally yellow means that some content has been pulled in from a non-SSL website (e.g. a graphic) and is not an issue
generally red means there is an issue with the SSL certificate
SSL certificates are all about encrypting the conversation between your computer and the server - it stops someone strange sitting at the next table to you at a cafe grabbing your typing over wifi - it will be encrypted...
It makes no difference to a phishing attack / this situation / keyloggers etc. where what you type is seen directly...
what data has been breached
perhaps surprisingly, probably not much...
I should say that I don't know the MN setup, but I do run a web company building websites :)
- your username and password will give the hacker access to your profile / account.
- they can post as you
- they can upload / remove photos
- they can see your email address
- they can see your PMs
as far as I know that is all - your account doesn't give access to anything else - the MN Admin account will probably let them delete people's posts / delete users / choose which biscuit appears on deleted threads - but I suspect that it is no longer compromised as if I had been the hacker I would have been deleting these threads :)
In reality, the hacker will not have had the time or interest to go through personal accounts reading PMs / or even as Admin to wreak a trail of havoc - the fact that more hasn't happened indicates that the publishing of the data was the goal = embarassment...
so probably there will be little issue for most people and in a few days all will be back to normal!
if you are worried - then it is only a few possible issues:
- your email address (if you use it elsewhere to log in, change the password)
- your PMs - if concerned, delete them.
everything else pretty much is public anyway...